1869.] on the Scientific Exploration of the Deep Sea, 433 



o o 



ouriace (mean temp. 01 



! 62-8 F.= 



= 17*22 C. 















100, lUiller-Uaseila lOo) , 



r 













O 





o 





02 1 



>) 



1G72, less th 



an surl 



ace 



A . 



0-/ 



r .= 



:0*O C 



OA 



ol) 4 



j* 



15*22, 



>) 



lOfath. 



2v 



33 



1*5 



OA 



56*0 



j> 



13 33, 



33 



20 



33 



o - 4 



33 



P9 



A A 



40 „ 



54*4 



jj 



1 2*44, 



33 



30 



33 



ro 



33 



09 



K A 



50 „ 



53 2 



J3 



11 *8, 



33 



40 



33 



12 



33 



0*64 



1 AA 



oil 



>> 



106, 



33 



50 



33 



2'1 



33 



1*2 



1 ^ A 



50*9 



) J 



10 o, 



33 



100 



33 



0*2 



33 



o-i 





JA - 



oO o 



JJ 



1 A . O 



10'3, 



33 



150 



33 



0*4 



33 



0*2 



2o0 „ 



^ A . O 

 00 _ 



3i 



10*1 1, 



33 



200 



33 



0*3 



33 



0*2 



QAA 



490 



3J 



A . O 



9*8, 



33 



250 



33 



A . C 



0 0 



S3 



0*3 



n " rv 



41) 1 



33 



9*5, 



33 



300 



33 



0*5 



33 



03 



JAA 



400 „ 



jo,; 



33 



9*17, 



33 



350 



33 



A . C 



0*0 



33 



0 - 3 



i -a 



4/ -o 



33 



8*7, 



33 



400 



33 



0*9 



>3 



0*5 



r aa 



500 j, 





33 



boo, 



33 



450 



33 



0*2 



33 



0*15 



(■ - A 



40 4 



33 



O . A 



8 0, 



33 



500 



33 



1 0 



33 



0'55 



TAA 



45'5 



33 



7'4, 



33 



550 



3 > 



A A 



09 



33 



0*5 



X A 



44 6 



33 



6-83, 



33 



000 



33 



1*2 



33 



O'G 



*7 A A 



/00 „ 



43-6 



33 



6-44, 



33 



050 



33 



0v 



33 



A . 4 



0'4 



750 „ 



42-5 



33 



5-83, 



33 



700 



33 



1-1 



33 



0-6 



800 „ 



420 



33 



5*55, 



33 



750 



33 



0'5 



33 



0-3 



862 „ 



397 



33 



4'3, 



33 



800 



33 



2-3 



33 



1-25 



A Water-Bottle was sent down with the sounding-lead on each occasion ; 

 and the specific gravity of the water was carefully taken, the air contained 

 in it analyzed, and the amount of organic matter estimated by Mr. Hunter. 

 Mr. Hunter's results, which are given below, corroborate generally the 

 observations made on the previous cruise by Mr. William L. Carpenter. The 

 Specific Gravity of the water is somewhat higher at the surface than at a 

 depth of 50 fathoms ; this is probably due to evaporation, the observation 

 having been made after a course of hot weather. From 50 fathoms down- 

 wards it increases slightly but steadily till within 50 fathoms of the bottom, 

 when it again falls a little. The proportion of Carbonic acid in the con- 

 tained gases increases slowly and steadily till within 50 fathoms of the 

 bottom, when it increases suddenly to the extent of upwards of 15 per cent., 

 mainly at the expense of the Nitrogen, which falls upwards of 14 percent., 

 the Oxygen remaining nearly stationary. The amount of Organic matter 

 seems to be very uniform, varying, apparently irregularly, within narrow 

 limits. 



