FIELD CROPS. 331 



to which the low average yield iter acri' of lint cotton is due, and reports llie 

 results of experiments with cotton by the station. 



From about 40,000 stalks several hundred were selected as foundation stock, 

 the seed from them being planted in 1907. The soil selected for the test, typ- 

 ical of the uplands of Anderson, Oconee, and Pickens counties of the State, was 

 well prepared and fertilized and thorough level cultivation was given to the 

 crop. Among 4G varieties the following ranked highest in yield of lint per 

 acre: Toole 730.40 lbs.. Cook Improved 622.27 lbs., Corley 620.S1 lbs.. Gold Stand- 

 ard 61S.04 lbs., Big Boll White Seeded Prolific 598.82 lbs.. Pride of Georgia 

 590.24 lbs., Columbia 589.22 lbs.. Excelsior Prolific 539.92 lbs., Shank High 538.11 

 lbs., and Sunflower 533.28 lbs. 



In percentage of lint Toole stood first with 40 per cent, followed by an un- 

 known variety with 39 per cent, Evans and Reimproved Toole with 38 per cent, 

 Brooks Improved, Pullnot, Cook Improved. Corley, and Gold Standard with 

 37.5 per cent, and Excelsior Prolific and Moss Improved with .30.2 per cent. 

 The acre value of seed and lint of the varieties ranking highest as based on 

 prices early in 1908 was as follows: Toole $110.45. Columbia $101.62, Sun- 

 flower $101.48, Cook Improved $98.08, Black Seeded Blue Ribbon $95.61, Pride 

 of Georgia $94.45, Gold Standard $93.95. Accidental Hybrid $90.82, Corley 

 $87.94, Big Boll White Seeded Prolific $86.57. 



p]stimates of the value of the cotton produced were given by three experts, 

 and their statements are reported. Attention is called to the fact that grading as 

 based on these reports would have increased the net returns by $18.66 per acre 

 in one case and by $20 per bale in another. 



It is pointed out that the highest acre value credited to one variety was 

 $92.05 and the lowest .$36.99, the varieties having been given the same treat- 

 ment throughout. The highest and lowest yields secured from varieties of like 

 characters in 5 years' trials showed variations from 448 lbs. to 171 lbs. of lint 

 per acre, from 412 lbs. to 140 lbs., from 474 lbs. to 135 lbs., from 637 lbs. to 381 

 lbs., and from 7.36 lbs. to 469 lbs. It was also observed that a wide variation 

 in the relative yields of the same varieties in different years often occurs. In 

 a one-year test King and Peerless each gave .566 lbs. of lint per acre, whereas 

 another year King gave 297 lbs. and Peerless 408 lbs. One year Bates Im- 

 proved gave 164 lbs. more than Jacksou Limbless, and in another 76 lbs. less. 

 As these irregularities ai"e not uncommon it is pointed out that one year's test 

 can not prove or disprove the value of a variety. Ways and means for indi- 

 vidual cotton growers to secure the best variety are discussed. 



A study made by W. J. Roach of the susceptibility of varieties to anthracnose 

 showed a variation from 24.4 i)er cent in the unknown variety to 2.7 per cent in 

 Harden Pi'olific. 



The nitrogen contents of Egyptian cotton, A. Schindler (Jour. Soc. Dyers 

 and Cohjurists, 24 (1908), No. Jf, pp. 106, i 07). —Experiments with brown Egyp- 

 tian cotton on the determination of nitrogen in raw cotton and in cotton after 

 boiling in caustic soda of different strengths are briefly noted. The raw cotton 

 contained from 0.250 to 0.2.56 per cent of nitrogen. By boiling in the caustic 

 soda the nitrogen content was considerably reduced. 



In a discussion of the article, E. Knecht reports further determinations show- 

 ing that Grey American cotton yarn contained 0.138 per cent of nitrogen, Texas 

 raw, cleaned cotton 0.150 jier cent, and Red Peruvian 0.280 per cent. 



The cultivation of potatoes, A. M. Sotjle and P. O. A'anatter ( Virginia Sta. 

 Bui. 17-'i. pp. 125-J3H, fifjii. ,S>. — Variety, fertilizer, and selection tests are 

 rei)orted. 



In 1906 the leading varieties and their yields per acre were as follows: 

 Burbauk 262.08 bu., Early Rose 258.53 bu., and Beauty of Hebron 243.36 bu. 



