I 872 1 
Delai Lama, a defcription of his country, p.469 — 471. ^Ke is the great objett of 
adoration of the heathen Tartars, p. 474—476. 
Delft , in Holland, obfervation on the exhalation from waters there, p. 252. 
De Lucy Mr. John Andrew, his barometrical obfervations on the depths of the mines 
in the Hartz, p.401. See Barometrical obfervations . On the expanfian of quick- 
silver in the tubes of barometers, p. 683, 684. Concerning his barometrical obfer- 
vations on Saleve, p. 715, 7 16—729, See. Mr. De Luc the mod fuccefsful in 
meafuring vertical heights with the barometer, p. 654, 655. Rule deduced from 
his obfervations on Saleve, p. 655, 656. Iixpanfion of quickfilver in the tubes of 
his barometers refulting from the Saleve obfervations, p. 656 — 658. Computations 
of part of his barometrical obfervations, anfwering to the coldelt and hotted tem- 
peratures of the air, p. 781 — 784. His method of adjuding the boiling point of the 
thermometer, p. 832. An examination of the rules delivered in his Ruherches fur let 
Modifications de V Atmoff>here> by obfervations made in Savoy, in order to afeertain the 
height of mountains by means of the barometer, p. 513. See Mountains. 
Depths of mines, ineafured by the barometer, p.401 — 409. The fubterraneous geo- 
meter’s method of finding thefe depths, p. 423, 424. Precepts and tables for calcu- 
lating any acceifible heights or depths from barometrical obfervations, p. 571 — 591- 
De Saujfure t Mr. his barometrical obfervations to afeertain the height of the Mole, 
P- 549 ’ £S°* 
Diameters. The ratio of the diameters of the earth, p. 767. 
Dicquemare, the Abbe, his third elTay on fea-anemonies, p. 56. See Sea-anemonies . 
Dobfon, Dr. his obfervations on the annual evaporation at Liverpool ; and on evapo- 
ration confidered as a tell of the moiiture or drynefs of the atmofphere, p. 244. 
See Evaporation. 
Dollondy Mr. his letter concerning Dr. Mafkelyne’s invention of the prifmatic micro- 
meter, p. 813 — 815. 
Dorotheay a mine in the Hartz, its depth determined by barometrical obfervations^ 
p. 408— 412. 431-4 35- 
Drink. An account of a woman living without food or drink, p. 1. See Woman. 
Drones have fome refemblances to the male organs of generation, p. 18- Drones as 
fmall as common bees, p. 21, 25. Drones well furnifhed with feminal liquor, and 
fecundating organs, p. 22, 23. They have a ftiare in the propagation of bees, p. 
22 — 28. Drones have no ding, p. 23, 26. 
Drynefs or moidure of the atmofphere ; evaporation confidere.d as a ted of it, p. 244, 
See Evaporation. 
£. 
fLarth. Annual evaporation from the earth, only a fixth part of what it is from water, 
p. 233. The exhalation from the earth is about a fixth part of what defeends in rain, 
p. 234, Some mathematical articles leading to a clear and fatisfaftory confiaeration 
of 
