Yazar
Perley Spaulding
26 cilt bulundu.
Perley Spaulding · Govt. print. off.
46 sayfa · 1911
Lenzites sepiaria. [from old catalog] / Wood / Diseases. [from old catalog] / Lenzites sepiaria / Diseases and pests
Perley Spaulding · U.S. Dept. of Agriculture, Bureau of Plant Industry
12 sayfa · 1909
White pine / Diseases and pests
Perley Spaulding · U.S. Dept. of Agriculture, Bureau of Plant Industry
Sayfa sayısı yok · 1909
White pine / Diseases and pests / Blister rust / Currant rust
Perley Spaulding · Govt. Print. Off.
88 sayfa · 1911
White pine / Diseases and pests / Ribes / Blister rust
Perley Spaulding · U.S. Dept. of Agriculture, Bureau of Plant Industry
Sayfa sayısı yok · 1908
Conifers / Seedlings / Diseases and pests / Damping-off diseases
Perley Spaulding · U.S. Dept. of Agriculture
Sayfa sayısı yok · 1914
White pine / Diseases and pests / Blister rust
Perley Spaulding · U.S. Dept. of Agriculture
22 sayfa · 1932
Blister rust / Pitch pine / Diseases and pests
Perley Spaulding · U.S. Dept. of Agriculture
100 sayfa · 1922
White pine / Blister rust / Diseases and pests
Perley Spaulding · U.S. Dept. of Agriculture
29 sayfa · 1912
Blister rust / White pine / Diseases and pests / Potato wart / Potatoes