الناشر: Govt. print. off.

موجود 593 كتب


Circular no. 49

بواسطة Bonsteel, Jay Allan. . النوع Soils / United States . الأسماء: areas / soil / type / area / grass و 117 اكثر
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Experiments in the artificial propagation of fresh-water mussels

بواسطة [Lefevre, George], 1869- [from old catalog] / Curtis, Winterton Conway, 1875- [from old catalog] . النوع Unionid. [from old catalog] . الأسماء: fish / glochidium / lampsilis / life / parasites و 106 اكثر
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Importation and movement of plants, fruits, and vegetables

بواسطة Simmons, James Samuel, 1861- [from old catalog] . النوع n-us--- / Plant quarantine / United States . الأسماء: plants / fruit / insects / dis / atlantic و 29 اكثر
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Volumetric studies of the food and feeding of oysters

بواسطة [Moore, Henry Frank], 1867- [from old catalog] . النوع Oyster-culture. [from old catalog] . الأسماء: data / plants / animals / areas / arenaria و 44 اكثر
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