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Circular (United States. Department of Agriculture) no. 246. : Hallock, H. C.
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1932
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1
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Circular (United States. Department of Agriculture) no. 247. : Parman, D. C.
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1932
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1
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Circular (United States. Department of Agriculture) no. 248. : Noble, W. B.
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1932
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1
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Circular (United States. Department of Agriculture) no. 249. : Gage, Charles Ellsworth,
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1933
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1
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Circular (United States. Department of Agriculture) no. 250. : Park, J. W.
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1932
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1
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Circular (United States. Department of Agriculture) no. 251. : Lambert, Edmund,
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1932
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1
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Circular (United States. Department of Agriculture) no. 252. : Boswell, Victor R.
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1933
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1
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Circular (United States. Department of Agriculture) no. 253. : Brooks, Charles,
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1933
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1
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Circular (United States. Department of Agriculture) no. 254. : Senner, Arthur H.
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1932
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1
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Circular (United States. Department of Agriculture) no. 255. : McPhail, M.
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1933
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1
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Circular (United States. Department of Agriculture) no. 256. : Hubbard, J. W.
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1933
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1
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Circular (United States. Department of Agriculture) no. 257. : Darrow, George M.
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1933
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1
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Circular (United States. Department of Agriculture) no. 258. : Manny, T. B.
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1933
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1
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Circular (United States. Department of Agriculture) no. 259. : Darrow, George M.
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1933
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1
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Circular (United States. Department of Agriculture) no. 260. : Clement, Clarence E.
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1933
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1
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Circular (United States. Department of Agriculture) no. 261. : Stauber, B. R.
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1933
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1
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Circular (United States. Department of Agriculture) no. 262. : Hubbard, J. W.
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1933
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1
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Circular (United States. Department of Agriculture) no. 263. : Clayton, Edward E.
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1933
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1
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Circular (United States. Department of Agriculture) no. 264.
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1933
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1
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Circular (United States. Department of Agriculture) no. 265. : Marsh, Rosemary Laughlin.
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1933
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1
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Circular (United States. Department of Agriculture) no. 266. : Clausen, Curtis P.
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1933
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1
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Circular (United States. Department of Agriculture) no. 267. : Beckett, R. E.
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1933
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1
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Circular (United States. Department of Agriculture) no. 268. : Smith, Glenn M.
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1933
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1
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Circular (United States. Department of Agriculture) no. 269. : Reed, W. D.
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1933
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1
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Circular (United States. Department of Agriculture) no. 270. : Newcomer, E. J.
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1950
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1
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Circular (United States. Department of Agriculture) no. 271.
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1933
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1
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Circular (United States. Department of Agriculture) no. 272. : Beattie, James H.
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1933
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1
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Circular (United States. Department of Agriculture) no. 273. : Skuderna, A. W.
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1933
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1
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Circular (United States. Department of Agriculture) no. 274. : Dawson, J. R.
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1933
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1
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Circular (United States. Department of Agriculture) no. 275. : Patch, L. H.
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1933
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1
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Circular (United States. Department of Agriculture) no. 276. : Clark, C. F.
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1933
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1
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Circular (United States. Department of Agriculture) no. 278. : Rose, Dean H.
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1933
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1
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Circular (United States. Department of Agriculture) no. 279. : Trimble, C. S.
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1933
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1
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Circular (United States. Department of Agriculture) no. 280. : Fleming, Walter E.
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1933
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1
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Circular (United States. Department of Agriculture) no. 281. : Scott, L. B.
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1933
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1
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Circular (United States. Department of Agriculture) no. 282. : Bryan, Mary Katherine,
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1933
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1
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Circular (United States. Department of Agriculture) no. 283. : Clark, J. Allen
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1933
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1
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Circular (United States. Department of Agriculture) no. 284. : Brandes, E. W.
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1933
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1
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Circular (United States. Department of Agriculture) no. 285. : Holbert, J. R.
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1933
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1
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Circular (United States. Department of Agriculture) no. 286. : Hite, J. E.
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1933
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1
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Circular (United States. Department of Agriculture) no. 287. : Blanchard, R. A.
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1933
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1
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Circular (United States. Department of Agriculture) no. 288. : Davis, W. C.
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1933
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1
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Circular (United States. Department of Agriculture) no. 289. : Cartwright, W. B.
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1933
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1
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Circular (United States. Department of Agriculture) no. 290. : Dachnowski-Stokes, Alfred P.
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1933
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1
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Circular (United States. Department of Agriculture) no. 291. : Wright, R. C.
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1933
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1
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Circular (United States. Department of Agriculture) no. 292.
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1933
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1
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Circular (United States. Department of Agriculture) no. 293. : Saunders, Richard F.
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1933
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1
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Circular (United States. Department of Agriculture) no. 294. : Winkjer, Joel G.,
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1933
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1
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Circular (United States. Department of Agriculture) no. 295. : Baker, Howard,
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1933
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1
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Circular (United States. Department of Agriculture) no. 297. : Christie, J. R.
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1933
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1
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