OBSERVATIONS UPON COTTON. 



419 



A very great range between the lowest and highest 

 numbers, and very irregular intervals between succeeding 

 fibres. The strongest hair yet tested is in this group. 



Breaking- weights of 24 hairs of Pernambuco cotton. 

 March 28, 1863. Price 23c?. per lb. 



Distance between points of suspension 0*3 to 07 inch. 



No. 



grs. 



No. 



grs. 



No. 



grs. 



No. 



grs. 



21 ... 



72*0 



10 ... 



108-9 



25 .. 



. 138-2 



9 • 



. 158-8 



24 ... 



72*0 



8 ... 



122*4 



17 .. 



• 139*2 



19 .. 



• 174*7 



23 ... 



79-2 



6 ... 



126-0 



7 . 



• 143*5 



16 .. 



. 193-4 



II ... 



90-2 



5 ... 



129-1 



22 . 



. 144-0 



18 . 



.. 228'0 



12 ... 



96-0 



3 — 



131*0 



14 . 



. 144-0 



13 . 



. 243-0 



X ... 



100-7 



4 ... 



I32"0 



15 .. 



. i47'6 



20 . 



. 251*1 



Mean breaking-weight = 140*2 grs. 



In this sample, which was one of the earliest I experi- 

 mented upon in this series, the points of suspension were 

 at considerable distances — in the four last numbers, re- 

 spectively, 0*4, 0*4, 0*5, and 0*3 inch; notwithstanding, the 

 mean results are high, and the differences pretty regular. 



Breaking- weights of 1 7 hairs of Surat (Dhallerah) cotton. 

 Price, December i860, sid. per lb. 



Distance between points of suspension O'l to 0*2 inch. 



No. 



grs. 



No. 



grs. 



No. 



grs. 



No. 



grs. 



13 . 



.. 48-0 



I ... 



"9*5 



9 .• 



. 138-2 



7 . 



. i88-6 



15 . 



.. 74*4 



II ... 



120-4 



17 .. 



. 164-1 



6 . 



. 221-7 



16 . 



.. 78-0 



8 ... 



127-2 



3 . 



. 175*2 



4 . 



.. 230-8 



2 . 



. 88-3 



5 ••• 



132-0 



14 .. 



. 180-9 



12 .. 



. 236*6 



lO . 



. 88*5 















Mean breaking-weight =141*9 grs. 



This sample presents a considerable number of strong 

 hairs ; it stands considerably higher than the Surat of 

 similar name ; the hairs have a bristly stiff character. 



