58 The Bulletin. 



Morgan's Climax ranked fourteenth in 1907 and first in 1908 at Edge- 

 combe; and twenty-fourth in 1908 at Iredell. 



Culpepper's Reimproved ranked eleventh in 1907 and fifth in 1908 

 at Edgecombe; ninth in 1907 and eighteenth in 1908 at Iredell. 



Layton's Improved ranked thirteenth in 1905 and nineteenth in 1907 

 at Edgecombe; and fourteenth in 1905 at Iredell. 



Pullnot ranked twenty-first in 1907 at Edgecombe and first in 1907 

 at Iredell. 



Sugar Loaf ranked third in 1907 and twentieth in 1908 at Edgecombe; 

 and sixth in 1907 and ninth in 1908 at Iredell. 



Cluster ranked twenty-fourth in 1907 and fifteenth in 1908 at Edge- 

 combe; sixth in 1907 and twelfth in 1908 at Iredell. 



Williams' ranked fifteenth in 1907 and twentieth in 1908 at Iredell; 

 and fourteenth in 1908 at Edgecombe. 



Russell's Big Boll Prolific ranked sixth at Edgecombe and first at 

 Iredell in 1908. 



Thigpen's Prolific ranked third at Edgecombe and fifteenth at Iredell 

 in 1908. 



Triumph ranked twenty-first at Edgecombe and twenty-fourth at Ire- 

 dell in 1908. 



Carolina ranked twenty-second at Edgecombe and twenty-sixth at Ire- 

 dell in 1908. 



Dozier's Reimproved ranked twenty-fourth at Edgecombe and seven- 

 teenth at Iredell in 1908. 



Columbia Long Staple ranked twenty-ninth at Edgecombe and twen- 

 ty-seventh at Iredell in 1908. 



Morgan's Ten Lock ranked thirtieth at Edgecombe in 1908. 



STUDY OF COMPILED RESULTS OF VARIETY TESTS OF COTTON. 



Nine years ago the Department of Agriculture, by means of its test 

 farms, began comparative tests of varieties of cotton, with the purpose, 

 primarily, of ascertaining, if possible, the varieties that are most pro- 

 lific of seed cotton per acre when grown under our conditions of soil and 

 climate. During this time tests have been made of seven varieties in 

 1900 to thirty-one in 1908 in the tests on the different farms. It is felt 

 from these accumulated data of nine years' tests that some very reliable 

 and valuable information has been derived, especially if taken and intel- 

 ligently applied by the individual farmers of the State in their farming 

 operations. 



VARIATION IN YIELD OF VARIETIES. 



In our variety tests we have had some variety or varieties to yield 

 700 to 900 pounds of seed cotton per acre more than other varieties in 

 the same tests and grown under identical conditions of soil, fertilization 

 and cultivation. This variation in yield has been no uncommon occur- 

 rence in our experience. Take, for instance, the results at the Edge- 

 combe farm during the past nine years. In 1900, in a test of eight 

 varieties, the difference between the variety yielding the largest amount 

 of seed cotton per acre and the one the smallest was 565 pounds; in 1901 

 and 1902, in tests of seven varieties each, the differences were 530 and 



