308 Dr. Pearson’s Experiments , &c. 
preceding ; and the experiments were made during the au- 
thor's autumnal course of lectures in 1791. In these experi- 
ments he was assisted by Mr. Egg inton, of Queen's College, 
Cambridge, who attended that course. The products were 
shown, and the experiments mentioned to several Members 
of the Royal Society the beginning of last winter, particularly 
to the President, who honoured the author with his attend- 
ance during several of the processes. 
The substance produced by M. Raymond, referred to in the 
Annales de Chimie , is a humid combination of phosphorus and 
lime, and does not decompound cold water ; it is therefore a 
very different composition from the phosphur of lime described 
in the above paper. 
