Photograph of a sample of grasses in plot 5 that have been treated with Ammonia Salts at Rothamsted in the mid 20th century.

Photograph of a man holding a rifle and standing in a forest in Bulkley Valley, British Columbia, Canada surrounded by wild celery in the early 20th century.

Photograph of a daga grass hut building in [Zimbabwe?] in the early 20th century. Shows a partially covered structure with some daga grass on the ground around it.

Photograph of a sample of both Downey Oat Grass, Avena Pubescens, and Yellow Oat Grass, Avena Flavescens,and a graph showing both plants growth over different plots of land.

Photograph and chart of fox tail grass - Alopecurus pratesis.

Photograph of a plot of grasses with full minerals after nitrate at Rothamsted, [England] in the early/mid 20th century.

Photograph of several different samples of grasses or grassland plants.

Photograph of a man on a horse (which is hidden by bushes or tall grass) riding through a field in Bulkley Valley, British Columbia, Canada in the early 20th century.

Photograph of pampas grass in a field that has been bred from white to pink.

Photograph of perennial ryegrass seed showing the usual impurities which are eliminated by special machinery used by McGill & Smith Ltd, seedsmen from Ayr, [Scotland] in the early 20th century.