INDEX. 
page 
Say, Thomas, Esq. on the genus ocythoe, - 107 
Scoresby, William, Jim. Esq., on the anomaly in the 
variation of the magnetic needle, as observed on ship- 
board, - - y6 
Sea water , its temperature at the surface, and at different 
depths, as observed by Lieut. Parry and others, 203 
Sea waters , on their specific gravity and temperature, in 
different parts of the ocean, and in particular seas ; with 
some account of their saline contents, - - l6l 
their specific gravities, - - 169 
on their saline contents, - - 191 
Series, injinite , on some new methods of investigating the 
sums of several classes of them, - - 249 
Serum , experiments made by Mr. Bauer, to prove that 
globules are produced in it, - 2 
Shank tin Farm , in the Isle of Wight, its latitude, - 408 
T 
Tabasheer, on its optical and physical properties, 283 
the absolute refractive power of that and other 
bodies, - - 287 
'Tides, some observations on the peculiarity of those be- 
tween Fairleigh and the North Foreland ; with an ex- 
planation of the supposed meeting of the tides near 
D ungeness, - - 217 
Trigonometrical Survey of Great Britain, observations for 
connecting the stations of it with those of the pendu- 
lum, - 301 
u 
Unst, operations for determining the variation in the 
length of the pendulum vibrating seconds at that sta- 
tion of the Trigonometrical Survey, - - 344 
W 
Water, a description of an apparatus for raising it from 
the bottom of the sea, - - 164 
