OBSERVATIONS UPON COTTON. 



405 



In the mean lengths Mobile is the longest, and one sample 

 of "good middling" Orleans the shortest; but the difference 

 is only 0'o65. The longest and shortest hairs are found 

 occurring in the sample of Orleans ; but the greatest dif- 

 ferences between the samples in this respect amount only 

 to O'lo for the longest, and 0*15 for the shortest hairs. 

 These four samples may be considered as forming a group 

 by themselves, but not a very distinct group, since they 

 merge as easily into East Indian cotton as into one another ; 

 but still they are separate. 



Length of 20 hairs of Mobile cotton. Sample furnished 

 by the Cotton Supply Association. Price, December 13th, 

 i860, 67 d. 



No. 



in. 



No. 



in. 



No. 



in. 



No. 



in. 



13 • 



.. I'20 



19 .. 



. ri5 



6 .. 



. I -05 



18 ... 



I'OO 



3 ■ 



.. 115 



8 . 



. I'lO 



5 •• 



. I'OO 



4 ... 



090 



9 



.. I'lS 



14 .. 



. I"IO 



7 •• 



. I'OO 



2 ... 



0-85 



12 



.. 115 



20 . 



. I'lO 



II .. 



. I'OO 



10 ... 



0-85 



17 



... 115 



I . 



. 1-05 



16 .. 



. I'OO 



15 ... 



075 



Mean length = i"o35 inch. 



Longest fibre = o'i65 inch longer than mean. 



Shortest fibre = 0*285 i^^^ shorter than mean. 



For the mean lengths, the difference of the longest and 

 shortest hairs is considerable ; but not less than 75 per cent, 

 are within O'l of the mean, which shows great regularity. 



Length of 20 hairs of Orleans cotton. Sample furnished 

 by the Cotton Supply Association, December 13th, 

 i860. Price Jfd. 



No. 



I 



12 

 16 



20 



m. 

 1-25 



I '20 

 I '20 

 I -20 

 I '20 



No. 



5 

 8 



4 

 II 



3 



in. 

 115 

 I-I5 

 I -05 



1-05 



I'OO 



No. 

 18 



19 

 6 



10 

 13 



m, 



0-95 



0-95 



0*90 



0*90 



0*90 



No. 



17 



7 



9 



14 

 2 



in. 

 0*90 

 0-85 

 080 



075 

 070 



Mean length = i'oo2 inch. 



Longest fibre = 0*248 inch longer than mean. 



Shortest fibre = 0-302 inch shorter than mean. 



