310 ARCTIC VOYAGES. Chap. IX. 



sence, and for the complete state in which he found 

 the Hecla on his return— the various observations 

 interesting to science sedulously performed, speci- 

 mens of natural history carefully collected and pre- 

 served, and all the duties of the ship carried on to 

 his perfect satisfaction. Many interesting observa- 

 tions were made on the inclination, dip, and in- 

 tensity of the magnetic needle. "Among other 

 magnetical observations," says Parry, " an interest- 

 ing series of hourly experiments had been made on 

 the diurnal changes of variation and intensity, and 

 continued for several days without interruption, by 

 the two Lieutenants." From these it appears that a 

 diurnal oscillation of the magnetic needle takes 

 place, usually amounting to about a degree and a 

 half, and in some instances to 2f°, the maximum 

 variation being about 4 h 22' p.m. The change of 

 intensity giving an increased action, was about 

 10 h 20' a.m., and minimum intensity about mid- 

 night. 



The animals met with on the shores of Treuren- 

 berg Bay and of Waygat Strait were of the same 

 kind, but less plentiful than those on the west coast 

 of Spitzbergen ; they consisted chiefly of sea-horses, 

 narwhals, and white whales, but no black ones ; the 

 more common animals were principally reindeer, 

 bears, foxes, glaucous and ivory gulls, tern, eider- 

 ducks, and grouse. Seventy reindeer were killed, 

 chiefly small, and until the middle of August not 



