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Standard specifications for steel highway bridges : adopted by the American Association of State Highway Officials and as approved by the Secretary o…
On the nature and property of soils their connexion with the geological formation on which they rest, the best means of permanently increasing their …
List of the agricultural, horticultural, and pomological societies, farmers' clubs, etc., on the books of the Department of Agriculture, July 1, 1870…
Three years' wanderings in the northern provinces of China, including a visit to the tea, silk, and cotton countries; with an account of the agricult…
Agricultural state of the Kingdom, in February, March, and April 1816 : being the substance of the replies to a circular letter sent by the Board of …
A treatise on practical and chemical agriculture, compiled, principally, from the scientific works of Sir H. Davy, when concurring with the experienc…
Seeds handbook for agriculture, horticulture and forestry, with a key for the identification of the important agricultural seeds = Handbuch der Samen…
Forest ranges and a forest range program : from "a national plan for American forestry" : a report prepared by the Forest Service, U.S. Department of…
The national forest manual. Regulations of the secretary of agriculture and instructions to forest officers relating to the general administration of…
Farm implements, and the principles of their construction and use : an elementary and familiar treatise on mechanics, and on natural philosophy gener…
