INDEX. 
Teredo Giganlea, - 
JV avails., anatomy of, 
Troughton , Mr. adjustment of circular instruments, 
page 
269—271 
278 
- 427 
u 
Uric acid in the urine of camels, - - - 373 
Urine of graminivorous animals contains phosphate of lime, 
374—379 
Variation of compass at Jamaica, - 348 
— — , observations at Somerset House, - 385 
, solstitial alteration of, - - 392 
, diurnal alteration of, - - 393 
— influenced by various causes, 393 
monthly - - - 4 1 5 
- — monthly diurnal alteration, - - 416 
— rate of annual increase, .... 395 
W 
Wollaston, Willi am Hyde,M. D: Bakerian lecture on 
the force of percussion, - - - 13 
Wood increases in density above a decorticated space, 302 
Worm-shells (Teredo) on the c ^ttm a t r a , - - 269 
From the Press of 
W. BULMER & Co<- 
Cleveland- Row, St. James’ 5, 
