5iS INDEX. 
Stones, voided through a fiftulous fore in the loins, with- 
out a concomitant difeharge of urine, p. 10H — hi. 
St. Lawrence river, latitude of entrance of, p. 190. 
St. John's IJland , latitude of, p. 173. longitude, p. 189. 
Stratum , a very fmgular one formed by the waters of 
Matlock, p. 124. Ufed in building, p. 125. 
Sub tangent of atmofpherical logarithmic, what, p. 244. 
Its length how to be deduced from obfervations of the 
barometer at different elevations, p. 233. The length 
of it variable, p. 234. Conftant in a given tempera- 
ture, ibid. Proportional to the abfolute elaflicity of 
the particles of the air, p. 250. Plow to be found in 
every temperature, p.251, 253, 256. The tempera- 
ture in which its length is expreffed in ioooths of an 
Englifh fathom by the fubtangent of the Briggian 
fyftem, p. 257. The temperature in which it is ex- 
preffed in ioooths of a Paris toife by the fubtangent of 
the Briggian fyftem, p. 256. 
Summer, fhortnefs of its duration in the country of La- 
brador, p. 375. Very moderate, and remarkably 
ferene, p. 376. 
Sun, its body probably formed of two kinds of matter, 
an internal dark globe, and a thin covering of luminous 
matter, p. 20. The fpots obfervable in it accounted 
for by this hypothefis, ibid. Irregularities of the fur- 
face of the internal globes, p, 23. Curious particulars, 
tending to corroborate the truth of this conje&ure, 
p. 24. Whether the internal globe be ignited, p. 27. 
No fpots, nor any diverfity of appearance, difcovera- 
ble in thofe regions, which lye towards the poles, 
p. 29. 
Sun plant of Hindojlan, culture of, recommended in warm 
climates, deftitute of hemp and flax, p. 100. 
Swinton , the Rev. Mr. John, his explication of a molt 
remarkable monogram on a quinarius, p. 318. 
Super/ oetation, eaftly accounted for, p. 479. 
Tables. 
