PUBLICATIONS OF THE OHIO AGRICULTURAL 

 EXPERIMENT STATION 



The publications of this Station are now issued in three series, namely: 



1. The Monograph Bulletin, each number of which is a record of progress 

 in a single line of investigation. This series is a continuation of both the 

 ordinary and the "Technical" series heretofore issued and is largely technical 

 in character. 



2. The Monthly Bulletin, each number of which contains several brief and 

 timely reports of progress in different phases of the Station's work, including 

 nontechnical abstracts of the Monograph Bulletins. 



3. A Weekly Press Bulletin, containing brief notes on the Station's work, 

 prepared for newspaper circulation. The more important of these notes are' 

 republished in the Monthly Bulletin. 



These publications are sent free on request. The addresses of those who 

 request that their names be placed on the mailing list will be entered for the 

 Monthly Bulletin only, unless either of the other series is definitely requested. 

 Address Mailing Room, Experiment Station, Wooster, Ohio. 



RECENT MONOGRAPH BULLETINS 



No. 321 Tomato diseases in Ohio: Descriptions and control measures 

 recommended for rhizoctonia, Fusarium wilt, bacterial wilt, stem rot, leaf spot, 

 blight, anthracnose, rot, "leak," leaf mold and other diseases common to grow- 

 ing tomatoes. 



No. 322 Feeding experiments with laying hens: Range vs. confinement, 

 variety vs. simple rations, various amounts of protein, methods of feeding, date 

 of hatching, corn vs. wheat. 



No. 323 County Experiment Farms in Ohio: Annual reports for 1916 

 and 1917. 



No. 324 Ohio weather for 1917. 



No. 325 Thirty-seventh annual report: Projects under investigation, 

 financial statement for 1917-1918, index to technical bulletins. 



No. 327 Clover vs. alfalfa for milk production: Discussion and summary 

 tables of feeds, production, groups of cows used and individual summaries. 



No. 328 Livestock vs. grain farming: Relative profits in livestock and 

 grain farming, labor required in both types, crops and fertility considerations. 



No. 329 The peach tree borer: Life history and habits, natural enemies, 

 testing of remedies for control, recommendations for control. 



No. 330 The mineral metabolism of the milch cow: Minerals needed by 

 dairy cattle, feeds that supply minerals, the practice of feeding bone flour, the 

 necessity of legumes in the ration. 



No. 331 The farmers' elevator movement in Ohio: Early history, loca- 

 tion, methods of operating and suggestions for organizing companies- 

 No. 332 Destructive insects affecting Ohio shade and forest trees. 



No. 333 Apple blotch, a serious fruit disease. 



No. 334 Dairy production in Ohio: Results of cooperative tests, costs in 

 production and suggested methods of fixing milk prices. 



No. 335 Effect of age of pigs on the rate and economy of gains. 



No. 336 The maintenance of soil fertility: A quarter century's work with 

 manure and fertilizers. 



No. 337 Ohio weather for 1918. 



No. 338 Thirty-eighth annual report : Projects under investigation, finan- 

 cial statement for 1918-1919, index to technical bulletins. 



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