INDEX. 
page 
. a , Major William. His measurement of an arc 
die meridian in Bengal, noticed and examined, - 340 
Laplace, M. On the grounds of the method given in the 
second chapter of the third book of his “ Mecanique 
Celeste,” for computing the attractions of spheroids of 
every description - - 1 
— view of his methods of analysis employed in 
computing the attractions of spheroids in general, - 5 
Lead, on its combination with chlorine, - - 184 
yellow oxide of, its composition, - - 196 
Libavius , liquor of, a remarkable property it exhibits with oil 
of turpentine, - - - - 177 
Light, its effects upon the tendrils of plants, - 315 
difference of its effects on certain vegetable substances, 31 7 
Lime, carbonate of on its primitive crystal, - 159 
Lymph, properties of, - - - 96 
— analysis of, - ib. 
M. 
Magnesia, muriat of, changes produced in it by the agency 
of heat under particular circumstances, - - 193 
Manganese, on its combination with chlorine, - 1 8 3 
properties and composition of, - 1 83, 184 
Membrana Tfmpani, in the whale bone whale, its description, 84 
Meridian, observations on the measurement of three degrees 
of the, conducted in England by Lieut. Col. W. Mudge, 321 
Metals , on the combination of some with chlorine, - I69 
- — ■ — on the relation between the proportion of oxygene 
and chlorine, with which some of them combine, -■ 1 93 
on the relation between the proportion of sulphur 
and chlorine, with which some of them combine, - 1 98 
Microscope, on a periscopic one, - - - 370 
■ on the advantages of one constructed on peri- 
scopic principles - 375 , 376 
N. 
Newton, Sir Isaac. The hypothesis he adopted relative 
to the figure of the earth noticed, 2, 322 
O. 
Organ of hearing , an account of some peculiarities in the 
structure of, in the Balaena Mysticetus of Linnaeus, 83 
