55 9 
index:. 
i 
Heat expands or contrads wood, p. 223. 
Heberden , Dr. Thomas, his obfervations of Jupiter’s firft 
fatellite, in Madeira, p. 502. 
Haemorrhages flopped by faintnefs, p. 402. Increafed by 
cordials, p.404. Often require blood-letting, p.405. 
Hewfon , Mr. William, his experiments on blood, p. 3 68. 
Horjley , Rev. Mr. Samuel, his confiderations on fome 
difficulties raifed againft the Newtonian theory of 
light, p. 417.. 
Hot water which iffues from the craters or volcanoes, 
whether fupplied by fea or rain-water? p. 16. 
Hudfon , Mr. William, his account of the fifty Chelfea 
plants for 1769, p. 541, &c. 
Hudfon' s bay, foil of the country, p. 117. Birds and 
infeds, p. 1 17, 118. Produdions, p. 118, 119, i20, 
&c. Winter drefs of inhabitants, p. 122, 123. Its 
fiffi, p. 126, 127. The natives defcribed, p. 127, 
128. 
Human glove, feparated in a fever, p. 452. 
Hunter , Dr. William, his letter on fome bones found in 
the rock of Gibraltar, p. 414. 
I. 
Ice , ifland of, feen and defcribed, p. 104, 106. By 
what principles accounted for? p. 107. Their mo- 
tion and diffolution very quick, p. 112, 132. How 
fhips work through them ? p. 112. 
Jllicium, fee Starry anifeed tree , 
Inclination of the needle obferved at Ponoy in Lapland, 
P' 357* 
Itflammation does not caufe coagulation, p. 390, 391, &c. 
attenuates the blood, p. 393. 
Inflammatory cruft of the blood formed from its coagula- 
ble lymph, p. 376, 388, &c. And owing to the at- 
• tenuation of it, p. 396. 
Jnterefl compound, feveral cafes relating to it iveftigated, 
p. 508,. Jobnfloni 
