INDEX. 
page 
Heat , simple mode of liquifying gases by the application 
of heat, - - - £03 
■ on the changes of volume produced in gases in dif- 
ferent states of density, by heat, - £04 
Ho me, Sir Everard, Bart, on the difference of structure 
between the human membrana tympani and that of the 
elephant, - - - - £3 
— on the double organs of 
generation of the lamprey, the conger eel, the common 
eel, the barnacle, and earth-worm, which impregnate 
themselves ; though the last from copulating appear 
mutually to impregnate one another, - - 140 
Hydrogen, sulphuretted , on its reduction to the liquid state, 191 
I 
Ivory, James, Esq. on the astronomical refractions, - 404 
K 
Kater, Captain Henry, account of some experiments 
made with an invariable pendulum at New South Wales, 
by Major-General Sir Thomas Brisbane, K. C. B. - 308 
L 
Lambton, Lieutenant Co lonel W. corrections applied 
to the great meridional arc, extending from latitude 
8° 9' 38", 39, to latitude 18° 3' £3", 64, to reduce it to the 
Parliamentary standard, - - £7 
Lamprey , on its double organs of generation, - - 140 
Liquids , on the application of those formed by the con- 
densation of gases as mechanical agents, - - 199 
London , details of experiments made at this place with an 
invariable pendulum, - £££ 
M 
Magnets , their influence on the diurnal deviations of the 
horizontal needle, - - - 34£ 
Membrana tympani , on the difference of structure between 
the human and that of the elephant, - £3 
Mercurial vapours, an account of their effect on the crew 
of His Majesty’s ship Triumph, in the year 1810, * 40£ 
Meridional arc , Great , corrections applied to it, extending 
from latitude 8° 9' 38", 39, to latitude 18° 3' 23'', 64 , to 
reduce it to the Parliamentary standard, - - £7 
