14 THREE CRUISES OF THE “ BLAKE.” 
(7. 5. Coast Survey Steamer * Blake.” Locality, off Grenada. Date, March 2, 1879. 
Sounding No. 31. Line K. Sinker used, lead ; weight, 34 lbs. 
Toros ot Redi Reeling out. Reeling in. 
аран КОА; Ак. ыйын MO, Liu: 
Register. Times. Intervals, Times. Intervals. 
H. M. 8. M. 8. H. M. 8. M. 8. 
000 4 £0 45 00 4 49 30 1 00 
100 21 42 51 49, 30 46 
£00 22 36 53 41 44 43 
300 28 35 1 00 41 1 49 
400 24 30 55 40 12 50 
500 25 32 | A14 39 22 1 4 
600 26 40 | 1 8 38 18 1-3 
700 | 27 50 | TCI 97 15 1 13 
800 £9 25 1 35 д6 2 1 0 
875 4 30 35 1 10 4 34 59 
EAI sity. ¢ UM rp 9 50 а? 8 31 
Sending Of Megistor^. . д die € ov „бул 6 s 7e LOTO CUSTOS 
DopmectondfoX aay nigel Bd. Vo.by GM, 645 6 
Uotrection fot tine of. with) uico bud a) wore Shine 104 
Поттер Ie у Sue BO UU UV UBUS | Vd ODO fotloms, 
The time occupied in taking one of the most recent deep- 
sea soundings by the old methods (those of the * Challenger ") 
is here given to show the comparative advantage of the two. 
Hydra machine, weight 336 lbs. Weight of line, 12 105. 8 oz. per 100 fms. ; breaking 
strain, 1,200 lbs. ; circumference, 0.8". 
Fathoms. Time Intervals. Fathoms. Time. Intervals. 
H. M. 8. M. 8 Ho М. В M. 8, 
000 2 44 20 00 1300 258 5 1 23 
100 245 5 45 1400 2 59 3 1 32 
200 2 45 45 40 1700 o ee 1 32 
300 2 46 30 45 1600 3 2 42 1 3 
400 2 47 25 55 1700 9 4 19 1 37 
500 2 48 15 50 1800 670-0 1 47 
600 2 49 15 1 00 1200 9 " 58 147 
700 2 50 24 кел 2000 3.9 40 1 47 
800 2 51 23 59 £100 9 11 29 1 49 
900 2 52 45 1:72 2:00 8 13 24 1 55 
1000 2 54 00 1 15 £500 3 15 2t 1 59 
1100 2 55 21 1 £l 2400 9 17 15 1 52 
1200 2 56 42 A 2435 3 17 55 40 
The whole time occupied in descent was thirty-three minutes, 
thirty-five seconds; and in heaving up, two hours, two minutes! 
