GREENLAND OR POLAR ICE. 



337 



IV. The natural history of the Greenland 

 Seas ; containing, 



1st, An account of the Greenland Sea: — its si- 

 tuation and extent, temperature both at the sur- 

 face and at considerable depths, currents, tides, 

 depth, Sf-c. 



Qd, The Polar Ice : — its varieties and proper- 

 ties, mode of generation, &c. : — its extent, si- 

 tuation, and variation ; with remarks on the prac- 

 ticability of performing a journey over the ice 

 to the North Pole. 



3d, The Atmosphere : — its changes of pressure, 

 &c. : — its temperature, probable temperature 

 of the North Pole, &c. : — Winds, their duration 

 and frequency of storms in the spring of the year, 

 &.C. : — Meteors, clouds, snow, and its numerous 

 crystallisations, hail, frost-rime, aurora borea- 

 lis, &c. 



4ft h, The Zoology :~the whale and its va- 

 rious genera : — the walrus, seal, bear, &c, : — 

 birds : — non-descript mollusca, and other marine 

 animals, &c. 



V. The History of the Northern Whale-Fish- 

 ery; shewing its progress, with an account of 

 those principles on which a successful fishery de-* 

 pends, 8tc.. 



VI. The History of the Minor Fisheries : — for 

 seals, vvahuses, &c. :» — with the method of kill- 



