[ S6 7 j 
Barometer, fiate of it at Lyndon, in Rutland, during the year 1776, p, 550. At Brit- 
t°I, p. 353. At London, for each month throughout the fame year, p. 3 5 B — 301. 
Created, lead, and mean height, in each month, p. 382. Heights determined by 
barometrical obfervations. See Heights. Defcription of a portable barometer, 
p. 658, 659. Eiredt of winds on the barometer, p- 751 — 753. Fixing the fcale of 
barometers with citterns recommended, p. 405, 406. Obfervations made in Savoy, 
in order to afcertain the height of mountains by means of the barometer ; being an 
examination of Mr. De Luc’s rules, delivered in his Recherches fur ks Modifications de 
V Atmofphere, p. 513. See Mountains. Rule for meafuring heights with the baro- 
meter, p. 686, 687. 734, 733. 757, 758. 762, 763, n. The rule which anfwers 
in middle latitudes, will notin the frigid and torrid zones, p. 742 — 756. 
Barometer tubes dilate much more than folid glafs rods, p 663, 664. 
Barometrical obfervations on the depth of the mines in the Hartz, p. 401. Correfponding 
obfervations taken, p. 405, 428, 429. Obfervations in places where the height is 
afcertained, p. 408 — 424. In the Dorothea, the Caroline, and the Benedift, in the 
environs of Ciautthal, p.408 — 412. In the Kaunkuhl, at the Ramelfburg near 
Goflar, p.417—419. At Alte Seegen, in the valley of Bremeke, p. 421, 422. 
K ear Lasfelde, in the valley of Otterode, ibid. The fubterraneous geometer’s method of 
finding the depths of mines, p. 423, 424. Obfervations determing the height of fome 
points of the Hartz, not verified by geometrical furvey, p. 425—429. The height 
of the Brocken above Oder-brucke, p. 429. That of Oder-brucke above Ciautthal, 
ibid. That of Ciautthal above Gottingen, ibid. And that of Gottingen above 
Hanover, ibid. Elevation of the Brocken above Hanover, ibid. Remarkon thefe 
obfervations, p. 430. A detail and calculations of barometiical obfervations made 
at the Hartz, in October 1776, p. 431—449. Obfervations on the mines of Clautt- 
hal, p. 431 — 435. At the Rameliberg, p.436 — 440. Obfervations at two points 
geometrically determined on the outfide of the mountain, relatively to the mine of 
Alte Seegen, p. 441 — 443. Obfervations to determine the height of the Brocken, 
with refped to Gottingen and Hanover, p. 444 — 449. Barometrical obfervations 
made in Savoy, to afcertain the heights of mountains, p. 513, &c. Precepts and tables 
for making thefe barometrical calculations, p. 571 — 597. 
Bajlard, ( William , Efq;) on the culture of pine-apples, p. 649. See Bine-apples. 
Beafis of prey, frequently feen in Africa, p. 39, 40. 
Beech-trees . The flourifhing ttate of one that had been frequently walked and rubbed, 
compared to others of the fame nature, p. 12 — 14. 
Bee hives, wild, how men are conduced to them by the Hcney-Guide, a curious fpe- 
cies of cuckow, p. 43— 45. See Cuckovj . 
Bees , difcoveries on the fex of them, explaining the manner in which their fpecies is 
propagated ; with an account of the utility that may be derived from thofe difcoveries 
by the actual application of them to pradtice, p. 15. Mode of propagating their 
5 Q~ 2 fpecies 
