64 
BULLETIN 1199, U. S. DEPARTMENT OF AGRICULTURE. 
185. The Maryland hog: Statistics, housing, feeding, care and management, miscellaneous information. 
By C. L. Opperman.— Breeds and breeding. By R. H. Ruffner.— Diseases of swine. By S. S. 
Buckley. Aug., 1914. 
186. Land drainage in Maryland. By J. R. Haswell. Oct., 1914. 
187. Profitable and unprofitable cows: Cow testing associations in Maryland. By G. S. Wolcott. Nov., 
1914. 
188. Types and varieties of Maryland tobacco. By W. W. Garner and D. E . Brown. Dec, 1914. 
189. The quality of grass and rape seed found in Maryland markets in 1913. By C. P. Smith. Jan., 1915. 
190. Tests of varieties of corn. By W. E . Hanger. Feb., 1915. 
191. Relation of catalase and oxidases to respiration in plants. By C. O. Appleman. Sept., 1915. 
192. Internal action of chemicals on resistance of tomatoes to leaf disesases. By J. B.S.Norton. Jan., 1916. 
193. Tasts of the availability of different grades of ground limestone. By L. B. Broughton, R. C. Williams 
and G. S. Frazer. Feb., 1916. 
194. Sudan grass. By Nickolas Schmitz. Feb., 1916. 
195. Onions: Experiments and culture. By T. H. White. Mar., 1916. 
198. Methods and problems in pear and apple breeding. By W. R. Ballard. Apr., 1916. 
197. Clover and grass seed inspected in 1914. By C. P. Smith. July, 1916. 
198. Wheat. By Nickolas Schmitz. Oct., 1916. 
199. Tests of the value of stable manure, commercial fertilizer, and crimson clover for vegetable crops.- By 
T.H.White. Dec, 1916. 
200. Winter oats, barley, spelt and emmer. By Nickolas Schmitz. Jan., 1917. 
201. Soybeans. By Nickolas Schmitz. Feb., 1917. 
202. Timothy fertilization and culture. By Nickolas Schmitz. Feb., 1917. 
203. Agricultural seed inspected in 1915. By C. P. Smith. Mar., 1917. 
204. Variety tests of potatoes, tomatoes, cabbage and other vegetables. By T. H. White. Mar., 1917. 
205. Fumigation of greenhouses. By E. N. Cory. Apr., 1917. 
206. The hothouse milliped. By E . N. Cory and F. H. O'Neill. Apr., 1917. 
207. Plum growing in Maryland. By F. S. Holmes. May, 1917. 
208. Tarsonemus pallidus Banks, a pest of geraniums. By Philip Garman. June, 1917. 
209. The oriental peach pest (Laspcyresia molesta Busck), a dangerous new fruit insect of Maryland. By 
Philip Garman. Dec, 1917. 
210. Agricultural seed inspected in 1916. By C. P. Smith. Jan., 1918. 
211. Strawberry notes. By W. R. Ballard. Jan., 1918. 
212. Physiological basis for the preparation of potatoes for seed. By C. O. Appleman. Feb., 1918. 
213. The control of house flies by the maggot trap. By E. N. Cory. Feb., 1918. 
214. Tests of an "all crops soil" inoculum. By Paul Emerson. Mar., 1918. 
215. Fertilizing and cultural experiments with Irish potatoes. By T. H. White. Mar., 1918. 
216. Conditions detrimental to seed production. By J. B. S. Norton and C. E. Leathers. June, 1918. 
217. The relation of milk yield to age at first calf. By R. C. Towles. June, 1918. 
218. Report of nut tree investigations in Maryland. By E. S. Johnston. June, 1918. 
219. The revised agricultural seed law. By C. P. Smith. Aug., 1918. 
220. Agricultural seed inspected in 1917. By C. P. Smith. Sept., 1918. 
221. An accurate method of determining which hens are laying. By R. H. Waite. • Sept., 1918. 
222. Experiments with fertilizers on greenhouse crops; the pollination of greenhouse tomatoes. By T. H. 
White. Sept., 1918. 
223. A comparison of several species of Lepidoptera infesting peach and apple in Maryland, with additional 
notes on the oriental peach moth. By Philip Garman. Oct., 1918. 
224. Agricultural seed inspected in March and April, 1918. By C. P. Smith. Dec, 1918. 
225. Fertilizer experiments with tobacco. By W. W. Garner and D. E . Brown. Jan., 1919. 
226. How to caponize. By R. H. Waite. Feb., 1919. 
227. Citrus fruit rinds as a hog feed. By R. S. Allen. Mar., 1919. 
228. Growing alfalfa in Marvland. By Nickolas Schmitz. July, 1919. 
229. Agricultural seed inspected in the fall of 1918. By C. P. Smith. July, 1919. 
230. Poultry appliances and methods. By R. H. Waite. Aug., 1919. 
231. Field damaged wheat for poultry. By R. H. Waite. Sept., 1919. 
232. Mushrooms. By T. H. White. Sept., 1919. 
233. The effect of age of eggs on their hatching quality. By R. H. Waite. Dec, 1919. 
234. Earthworms, the important factor in the transmission of gapes in chickens. By R. H. Waite. Jan., 
1920. 
235. Capons vs. cockerels. A comparison of their rate of growth and feed consumption. By R. H. Waite. 
Mar., 1920. 
236. The control of the strawberry leaf beetle ( Typophorus canellus Fabr.). By E. N. Cory and W. C. 
Travers. May, 1920. 
237. Variety tests of com, wheat, and soy beans. Bv J. E. Metzger and Geary Eppley. July, 1920. 
238. Seed inspection for 1919. By F. S. Holmes. July, 1920. 
239. The relation of certain greenhouse pests to the transmission of a geranium leaf spot. By Philip Gar- 
man. Oct., 1920. 
240. Internal fungous parasites of agricultural seeds. By C. C. Chen. Nov., 1920. 
241. Annotated list of Halticini. By A. B. Duckett. Dec, 1920. 
SPECIAL BULLETINS. 
[A.] Facts about the station. Fair edition, 1889. 
[B.] Potash and paying crops. [Compiled by A. de Ghequier]. July, 1890. Identical with Georgia Sta. 
Bui. 9, West Virginia Sta. Special Bui. [1], Tennessee Sta. Special Bui. D. 
[C.J Composition of commercial fertilizers sold in this State. Oct., 1890. 
D. Composition of commercial fertilizers sold in this State. Feb^ 1891. 
E. Composition of commercial fertilizers sold in this -State. By H. E. Alvord. Aug., 1891. 
F. The agricultural outlook for Maryland. By Edward Stake. Jan., 1892. 
G. Composition of commercial fertilizers sold in this State. Feb., 1892. 
H. Government direction of agriculture in Europe. By J. E. Ray, jr. July, 1892. 
I. Composition of commercial fertilizers sold in this State. Aug., 1892. 
J. Composition of commercial fertilizers sold in this State. By H. B. McDonnell. Feb., 1893 
K. Composition of commercial fertilizers sold in this State. By H. B. McDonnell. June, 1893. 
