5 416.65(4)

HARVARD
UNIVERSITY

FF 2 963

W. WILSON, Printer, 4, Greville-Street, Hatton-Garden, London.

CHAP. XXXIV. Atmospherical Department

SECT..... Composition of the Atmosphere..........................................

ii. Atmospheric Air

Page

I

ib.

4

iii. Atmospheric Water.....66 14

iv. Atmospheric Carbonic Acid

19

v. Atmospheric unknown Bodies..........................................

.vi... Variation of the Atmosphere, wh..!!....................

21

24

CHAP. XXXV... Zones and Climates ....

41

CHAP. XXXVI. Nature, Properties, and Variations of Heat...

50

Page

SECT. i. Sources and Effects of Heat

50

ii. Variation of Local Heat

67

iii. Variation of Heat in Countries best known, or most

exposed to it.............

74

CHAP. XXXVII. Degrees and Effects of severe Cold in High

Latitudes, &c.

86

SECT. i.

Cold of the South Polar Regions

ib.

ii. Ice-Islands, and sufferings of Lieutenant Riou, in

the Guardian Frigate..........

95

iii. Cold of the North Polar Regions, as ascertained by

Lord Mulgrave........

iv. The same, as ascertained by Capt. Cook, with his

Discovery of a passage from the Pacific Ocean

Northward.........

100

.... 106

111

v. State of the Globe within the Arctic Circle...........

vi. Effects of Cold at Hudson's Bay, in 1741-2........... 114

vii: Extraordinary degree of Cold at Glasgow, in Jan.

1780.....

121

CHAP. XXXVIII. Evaporation........

CHAP. XXXIX. Formation and Nature of Dew, Mist, Fogs,

129

Clouds, Rain, Snow, und Hail........................................................... 139

SECT. i. General Remarks........

ii. Annual Fall of Rain .........

................ ib.

150

152

153

iii. Fall of Butter-like Dew in Ireland .......

iv. Dense Fog in the Island of Sumatra.........

3. Shower of Dust that fell on a Ship near Ice-

xi. Avalanches, or falling Masses of detached and in-

cumbent Snow-heaps, from the Summits of lofty

Mountains

ib.

173

xii. General Nature of Hail

175

181

xiii. Violent Hail-Storms, accompanied with Stones of

unusual size

CHAP. XL. On Winds, or Atmosphericul Currents

SECT. I. General Remarks on the Nature and Origin of

Winds, Trade-Winds, Monsoons, Partial Winds,

and Hurricanes

182

185

ib.

vi. Occasional Winds; as Hurricanes, Tempests, Tor-

nadoes, and Whirlwinds

1. Hurricanes of the West Indies........

2. Hurricanes of the Indian Coast

3. Hurricane in Huntingdonshire, Sept. 8, 1741...

4. Tempest at Wigton, Cumberland............................................

5. General Remarks on Tornadoes or Whirlwinds...

6. Dreadful Whirlwind at Cambridge, New Eng-

235

ib.

238

244

246

248

249

...

7. Whirlwind at Corne Abbas, Dorsetshire .......... 251

*8. Account of two considerable Hurricanes in

CHAP. XLI. On the Prester, or Water-Spout......

.... 256