Page:Philosophical Transactions - Volume 050, part 1.djvu/52

 under its surface; and of these several observations is the following table composed.

Ht. Water Ht. Water Water Weight N< Heights. Wt. before when raifed. Water. immerfed. immerfed. Solidity. Ft. In. Pds. Inches. Inches. Inches. Pounds. I 6 02 161
 * 9 > 3 0 21,20 1,9° 2 >573 160,8 2 5 I of H 7 I 9 > 2f 21,16 1,91 2,186 16l,6 3 5 9 i lib 19,21 2 1,06 i,8y 2 > 5°5 if 6, 6 4 5 140 l 9^7 21,21 2,04 2 > 7 6 3 172,6 5 5 Si if 8 l 9>*3 2 1,21 2,08 2,817 176,0 6 5 if i*8 19,09 2 1,26 2,17 2,939 18 3>7 7 i 4 f 140 19, oy 21,06 2,01 2,722 17 0,I 8 5 3i 132 19,01 20,86 1,85 2 .f°t 156,6 9 5 4 i 121 18,97 20,76 1 >79 2,424 10 i 3f T46 18 >93 20,66 C 73 2 >343 146,4

In making of these experiments, I remarked some inconveniencies, which I did not at first advert to, and which, at that time, I could not prevent. I intended, that each man should have got gently into the water, immersed himself all but his head, and so have staid until the motion of the water had ceased; then he was suddenly to have ducked his head under, and have continued so a few seconds of time, until I had noted the rise of the water; and, after his leaving the cistern, another was not to go in until the water was free from motion. Could these things have been done, as I had projected, I could have recommended the foregoing table as sufficiently complete: but I must observe, that beside the men's being of different sizes from what I had desired, they were in too much haste to be dismissed (with another dram 7