INDEX. 
page 
Knight, Thomas, Esq,. A new demonstration of the bino- 
mial theorem, - - - 331 
L 
Lacerta Gecko , the foot of that animal described, - 150 
Lantern, fir e~valve, a description of one so called, to be used 
in coal mines, - - - - 22. 
' Lantern , safe , a description of one to be used in coal mines, 12 
* a description of another upon the same princi- 
ple, but with certain modifications, - - 14 
Leaf stalks, a fluid possessing the power attributed to sap, 
proved to descend through them, - - 289 
Leaves of plants, detached, on their action, - - 289 
M 
Mask'elyne, Dr. Demonstrations of his formulas for find- 
ing the longitude and latitude of a celestial object from its 
right ascension and declination ; and for finding its right 
ascension and declination from its longitude and latitude, 
c 1 
the obliquity of the ecliptic being given in both cases, 138 
Monte della Guardia , near Genoa, on the manufacture of sul- 
phate of magnesia at that place, - - 294 
Mornay, A. F. Esq,. An account of the discovery of a mass 
of native iron in Brasil, - - - 270 
N 
JYickel , a description of the means employed for detecting the 
presence of it in native iron, - - 2 82 
O 
Oil, the proportion of it in different ova corresponds with the 
greater or less degree of hardness of the bones of the 
foetus, - - - S 10 
P 
Planet , direct and expeditious methods of calculating the 
excentric from its mean anomaly, - - 127 
Presents, a list of those made to the Royal Society from No- 
vember 1315, to July 1816, - - 355 
R 
\ - ^ ' ■ y 
Refraction , double , on the communication of it to glass, mu- 
riate of soda, and other hard substances, _ 157 
on the communication of it either transi- 
