Tree Identification Photographs

Historic photographs related to tree identification, showcasing leaves and research on various tree species and forest management practices.

Borers - All States. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Tree Identification - Basswood. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Fire Control Research - North Carolina. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Tree Identification - Spruce: Brewer. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Tree Identification - Locust. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Aphids - All States. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Borers - All States. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Tree Identification - Oak: Turkey. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Tree Identification - Sycamore: American. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Insects/Reptiles - All States. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Coniferous Worms - All States. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Tree Identification - Fir- Red. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Tree Identification - Locust. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Tree Identification - Pine, Slash. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Tree Identification - Hackberry. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Defoliators - All States. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

The image shows a flat plate felt filter used by the Chemical Warfare Service. The filter was issued on June 3 and is labeled as number AU.

Tree Identification - Douglas. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Timber Management: Types - District of Columbia. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

The image shows H.H. Clark conducting mechanical research for the Chemical Warfare Service's Research Division. He is working on the G-76 smoke filter, which is used in conjunction with the canister SURVECT. The photo was taken on July 12, 1918, and its unique ID is P.N. 1055. This information is documented by the Chemical Warfare Service.

Chemical Spraying: General. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Tree Identification - Soapberry. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Forest Fire Equipment: Tool Caches - All States. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Tree Identification - Chestnut. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Forest Products Insects - All States. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Tree Identification - Popular. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Tree Identification - Hemlock: Carolina. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Tree Identification - Hickory: Pignut. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Tree Identification - Persimmon. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

This image depicts a French portable transmitting set, type 3. It was taken on January 18th in the Research and Inspection Lab in Paris, France. The photograph was released by A.E.F. Censor on January 7th, 1919. The image has notes with the number 30662.

Forest Diseases - Minnesota. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Tree Identification - Maple: Silver. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Lumber wagon test conducted by the Chemical Warfare Service during World War One. The test involved dropping canisters 9030 times through a one-inch distance, at a rate of 75 drops per minute. Four different positions were tested: canisters loosely assembled upside down, right side up, flat side up, and with the narrow side facing down. Test aimed to study the effect of mixtures and position on the springs inside the canisters. Description number: 54505.

Tree Identification - Pine, Loblolly. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Forest Mensuration: Surveying/Studies - District of Columbia. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Forest Diseases - New Mexico. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Footsteps of a plectropterna gracilis and an arachnichnus dehiscens; Plectropterna gracilis; Arachnichnus dehiscens. On the left the footsteps of a plectropterna gracilis, right an Arachnichnus dehiscens.

Wood Anatomy - All States. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Termites - All States. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Termites - All States. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Parasites - All States. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Tree Identification - Basswood. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Insects: Forest Insects - All States. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Decadenence -Dieback - All States. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Tree Identification - Oak: Swamp Chestnut. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Forest Diseases - Montana. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Image of a French Type "K" weapon, shown in exploded view. The photograph was taken on January 26, 1918, and released by W.C.D. It was issued to the Photo Division, subject to approval. The image comes with laboratory notes.

Private P. Grenbeaux conducting steel corrosion tests at the Department of Agriculture Building in Washington, D.C. The photograph was taken on December 14, 1918. The image shows no creative elements.

This photograph shows a G-76 smoke filter for use with the canister, taken by photographer Chemical Warpare Service BIOD on April 2, 1919. The filter was issued for military use, specifically designed to mitigate the effects of smoke during World War One.

Description: Central Ring of Forts Tale. 1,000 ft. OBS OFR W L Roberts. Location: British Somaliland Date: 1919 africa

Forest Mensuration: Surveying/Studies - District of Columbia. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Wood Anatomy - All States. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

North Carolina - Raleigh, Aerial Photograph.

This image shows a physiological research conducted by E.K. Marshall from the Chemical Warfare Service; Research Division during World War I. The research focuses on the effects of G-49 chemical agent, specifically on the development of emphysema and edema in the intravascular lymph space.

Human bone with a deviation, Isaac Weissenbruch, 1836 - 1912 print Netherlands paper bones in general (human body). diseases

Tree Identification - Devilwood. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Tree Identification - Basswood. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Disease Control - Wyoming. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Tree Identification - Fir- Balsam. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Tree Identification - Pine, Mexican Pinyon. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Other Plants: Poisonous and Noxious. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Tree Identification - Tupelo: Black. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Tree Identification - Elm. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Ornamental leaf with linear and floral ornaments, Dagobert Peche -

"4.7 inch smoke shell containing sulfur trioxide, photographed 23 seconds after explosion. Image taken by photographer from the Chemical Warfare Service. Description number AU issued. Notes: 1488."

Photographs captured using the Stirring Detective Camera by Wilhelm Burger in 1888, showing various scenes with high exposure effect.

Photograph showing a 75 mm shrapnel smoke shell containing sulphur trioxide and 75 grams of black powder. The image was taken by a Chemical Warfare Service photographer on April 2, 1919. The shell has an issued number of AU 75. Additional notes mention the purpose of the shell as well, but details are not provided.

Forest Diseases - Utah. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Description: Archaeological excavations at Athit, 1920s. Location: Athit, Palestine Date: 1920-1929

Tree Identification - Locust. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Coniferous Budworms - All States. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Vignette with Distel, Reinier Willem Petrus de Vries (1874-1953), 1884 - 1952 drawing paper. India ink (ink). pencil pen plants and herbs: thistle

Root -Feeding Aphids - All States. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

High pressure storage and purification plant at the Haber Synthetic Ammonia Catalyst Testing Plant, American University in Washington, D.C. The plant is used for testing the catalyst for the production of synthetic ammonia. This photograph was taken on January 30, 1920 by Sergeant HTZZ, S.C. This is an official US photo (077770).

Tree Identification - Hickory: Pignut. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Drawings of Tree Parts - All States. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Insects: Forest Insects - All States. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Tree Identification - Oak: Embery. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Image of a mobile anti-aircraft searchlight used by the Engineer Corps at Washington Barracks in D.C. The searchlight has a diameter of 36 inches and a 1 amp power source. Photo taken on April 17, 1918, and released on May 9, 1918, by the Historical Branch of the War Plans Division.

Forbs and Wildflowers - E. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Artificial Regeneration - General. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Tree Identification - Pine, Spruce. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Workers at the San Francisco experiment station of the United States Bureau of Mines, led by petroleum technologist Chester Naramore, engage in war work during World War One. The station plays a crucial role in developing methods and research related to petroleum.

A photograph showing an SCR 55 vacuum tube detector set, part of the SCR Apparatus. This equipment was used for military activities during World War One. The photo was taken in March 1918 by Photographer Reco 2620. This image was not meant for publication and is part of the laboratory notes.

Bark Beetles: Scolytus Beetle - All States. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

The image shows a French T.P.S. transmitting set, No 2 bis, taken in the Research & Inspection Laboratory in Paris, France. It was released by A.E.F Censor on January 7, 1919. The photograph was taken by S.C. Reco on January 4, 1919.

Borers - All States. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Section of dog's lung twelve hours after exposure to Mustard gas. This photograph was taken as part of the Chemical Warfare Service's Research Division physiological research conducted by E.K. Marshall. It was taken on July 12, 1918 and is labeled as subject 54493. The image is intended to document the effects of Mustard gas on lung tissue.

Fishing - Georgia. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Tree Identification - Pine, Slash. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Soldier standing in Base Laboratory 5 in Brest, Finistere, France. He is holding a tray with a "horse shoe kidney" displayed. The photo was taken by Pvt. Soper, S.C. on March 1st, 1919 at 15:00. The image has the description note "48610".

Laboratory Techniques - All States. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Engraver Beetles and IPS - All States. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Tree Identification - Pecan. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Fire Control Research - Oregon. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Instrumentation: Climatic - North Carolina. Photographs Relating to National Forests, Resource Management Practices, Personnel, and Cultural and Economic History

Photograph of the receiver of a Browning Machine Gun being manufactured at Winchester Repeating Arms Co. in New Haven, CT, in April 1918. The top view shows the finished blued receiver, while the bottom view shows the reverse side. This image was released by W.C.D. to Photo Division 8.C. and is subject to approval.

Microscopic recording of mahogany, enlarged sixty times, Marinus Pieter Filbri, 1887 - 1888 photograph This photo is part of an album. Netherlands paper albumen print wood, timber ~ building material Netherlands

Pressure test, Cornelis Ploos van Amstel, 1736 - 1798 print The print is loose in the back of an album. paper

Employees at the San Francisco experiment station of the United States Bureau of Mines, led by petroleum technologist Chester Naramore, are engaged in war work during World War One. They are conducting research and experiments related to petroleum technology and its application in the military.

An AU symbol issued instrument used in testing airplane engines is captured in this photograph taken by a signal corps photographer during World War I. The image, 111-SC-20839, was received and recorded on March 10, 1921, with additional notes noted as 20839 3-3406.

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