INDEX. 
M P a S c 
Magnesia, on its effects on the growth of vegetables, - 307 
Manuscripts , Oriental , catalogue of, - - “335 
Margueron, M. remarks on his analysis of synovia, - - 247 
Monoceros, on the stars in, - - - - 128 
Monsters, remarks on those which have superfluous parts, - 174 
Mother of pearl, experiments on shells composed of it, - 318 
Mules , remarks on vegetable ones, *■ - 203 
Muriate of tin, on its use as a test for the tanning principle, - 262 
N 
Nacre, experiments on shells composed of it, - - 318 
Nerves, experiments and observations on their structure, - 1 
Neuters , remarks on the persons so called, - - 165 
o 
Organs of generation, on imperfections in the male ones, - 160, 165 
— — ________ on imperfections in the female ones, - 162 
■ ■ — on the mixture of those of both sexes, 167. 
P 
Patella , experiments on, - - - - 317. 
P ea, experiments on its fecundation, - - - - 196 
Pearls , experiments on, - - - - - 320 
Perseus, on the stars in, - 129,140 
Presents deceived by the Royal Society, from November 1798 to 
June 1799, - - - - 345 
Q 
Quadrupeds, graminivorous, observations on their teeth, - 237 
R 
Rain, register of, at Lyndon, in Rutland, - - - 24 
Ravensworth, in Yorkshire , latitude of, - - 109 
Refraction of the air , on an unusual horizontal one, - - 13 
Retina , remarks on, - - “3 
Rhinoceros, on its teeth, - - 253 
Rumford, Benjamin Count of. An inquiry concerning the 
weight ascribed to heat, - - - - 1 79 
