ohio. 137 
307. The lesser peach tree borer (Synanthedon pictipes Grote and Robinson). By J. L. King. Jan., 1917. 
308. The mineral metabolism of the milch cow: Second paper. By E. B. Forbes [and others]. Jan., 1917. 
309." Spray calendar with seed, soil and disinfection treatment methods. By W. J. Green, A. D. Selby, 
and H. A. Gossard. Jan., 1917. A revision of 232. 
310. The green soldier bug ( Nezara hileris Say). By R. D. Whitmarsh. Feb., 1917. 
311. Distribution of the Ohio broods of periodical cicada with reference to soil. By H. A. Gossard. Mar., 
1917. 
312. Soybean culture. By C. G. "Williams.— Uses of soybeans. By J. B. Park. Mar., 1917. 
313. Dependable fruits. By W. J. Green, Paul Thayer, and J. B. Keil. Mar., 1917. 
314. Ohio weather for 1916. By W. H. Alexander and C. A. Patton. June, 1917. 
315. Thirty-sixth annual report for 1916-17. By C. E. Thome [and others]. June, 1917. 
316. Proportions of supplements to corn for fattening swine. By W. L. Robison. Sept., 1917. 
317. The' pink and green aphid of potato ( Macrosiphum solanifolii Ashm.). By J. S. Houser, T. L. Guyton, 
and P. R. Lowry. Nov., 1917. 
318. Relation of phosphorus and nitrogen in soil to the composition of wheat. By J. W. Ames and G. E. 
Boltz. Nov., 1917. 
310. Potato diseases. By D. C. Babcock. Nov., 1917. 
320. Some external parasites of poultry. By D. C. Mote. Dec, 1917. 
321. Tomato diseases in Ohio. By J. G. Humbert. Feb., 1918. 
322. Feeding experiments with laying hens: Range versus confinement; variety versus simple rations; 
comparison of tankage and meat scrap; various amounts of protein in rations; different methods 
of feeding; egg production of early, medium and late hatched pullets; comparison of corn and wheat. 
By W. J. Buss. Mar., 1918. 
323. County experiment farms in Ohio: Annual reports for 1916 and 1917. By C. W. Montgomery [and 
others]. May, 1918. 
324. Ohio weather for 1917. By W. H. Alexander and C. A. Pattou. June, 1918. 
325. Thirty-seventh annual report for 1917-18. By C. E. Thorne and others. June, 1918. 
326. The agriculture of Ohio: History of Ohio agriculture. By W. A. Lloyd.— Ohio agriculture from 1850 
to 1910. By J. I. Falconer.— Crop production in Ohio since 1850. By C. E. Thorne. July, 1918. 
327. Clover versus alfalfa for milk production. By C. C. Hayden. July, 1918. 
328. Livestock versus grain farming. By C. G. Williams. July, 1918. 
329. The peach tree borer (Sanninoidea exitiosa Say), order, Lepidoptera, family, Aegeriidae. By H. A. 
Gossard and J. L. King. Sept., 1918. 
330. The mineral metabolism of the milch cow. Third paper. By E. B. Forbes [and others]. Sept., 1918. 
331. The farmers' elevator movement in Ohio. By H. E. Erdman. Nov., 1918. 
332. Destructive insects affecting Ohio shade and forest trees. By J. S. Houser. Nov., 1918. Supersedes 
194. 
333. Apple blotch, a serious fruit disease. By A. D. Selby. Feb., 1919. 
334. Dairy production in Ohio. By R. I. Grady and M. O. Bugby. Feb., 1919. 
335. Effect of age of pigs on the rate and economy of gains. By W. L. Robison, Mar., 1919. 
336. The maintenance of soil fertility: A cpiarter century's work with manure and fertilizers. Plans and 
summary tables of the field experiments at the central farms, Wooster, and the district experiment 
farms at Strongsville, Germantown, Carpenter and Findlay. [By C. E. Thorne and others.] 
Apr., 1919. 
337. Ohio weather for 1918. By W. H . Alexander and C. A. Patton. June, 1919. 
338. Thirty-eighth annual report for 1918-19. By C. E. Thorne [and others]. June, 1919. 
339. Orchard rejuvenation in southeastern Ohio. (Second report.) By F. H.. Ballou and I. P. Lewis. 
Apr., 1920. 
340. Green forage crops and corn for fattening lambs. By J. W. Hammond. May, 1920. 
341. The chrysanthemum gall midge (Diarthronomyia hypogaea F. Low). By T. L. Guyton. May, 1920. 
342. Organizations among Ohio farmers: Extent and nature of business and farm improvement associa- 
tions. By H. E. Erdman. June, 1920. 
313. The use of forage crops in the fattening of pigs. By W. L. Robison. June, 1920. 
344. County experiment farms in Ohio: Annual reports for 1918 and 1919. [By C. W. Montgomery and 
others.] June, 1920. 
345. Ohio weather for the year 1919. By W. H. Alexander and C. A. Patton. June, 1920. 
346. Thirty-ninth annual report for 1919-20. By C. E. Thorne [and others]. June, 1920. 
SPECIAL BULLETINS. 
1. Bovine tuberculosis in its relation to the public health. Nov., 1898. 
2. Proposed slaughter of tuberculous cattle. Mar., 1899. 
3. Proposed slaughter of tuberculous cattle. Apr., 1899. 
3. Sorghum. By C. E. Thorne. Apr., 1900. 
4. Clover seed. By A. D. Selby. Apr., 1900. 
TECHNICAL BULLETINS. 
Vol. I, No. 1. Preparatory stages of the 20-spotted ladybird; studies in pond life; a partial bibliography 
of insects affecting clover. By. C. M. Weed. Oct., 1889. 
Vol. I, No. 2. Flowering plants on grounds of the Ohio State University. By Moses Craig.— Fourth con- 
tribution to life history of little known plant lice. By C. M. Weed.— Descriptive catalogue of the 
shells of Franklin County, Ohio. By H. A. Surface. May, 1890. 
Vol. I, No. 3. Entomological and botanical papers. By F. M. Webster [and others]. Apr., 1893. 
Vol. I, No. 4. A preliminary list of the birds of Wayne County, Ohio. By H. C. Oberholser. July, 1896. 
5. A review of the literature of phosphorus compounds in animal metabolism. By E. B. Forbes and 
M.H.Keith. Mar., 1914. 
6. The metabolism of organic and inorganic compounds of phosphorus. By E. B. Forbes [and others]. 
Mar., 1914. 
7. On nitrification: Preliminary observations. By E. R. Allen and A. Bonazzi. Apr., 1915. 
8. Studies on the estimation of inorganic phosphorus in plant and animal substances. By E. B. Forbes, 
F. M. Beegle, and A. F. D. Wussow. June, 1915. 
MISCELLANEOUS. 
Wood-using industries of Ohio. By C. "W. Dunning. 1912. 
INDEXES. 
General index to reports and bulletins volumes 1-20, 1882-1901 (Ohio Agr. Expt. Sta. Bui. 128, Index sup- 
plement). 
