V 
48 REPORT—1847. 
weight is that of the air really moving and passing towards the fire IhroBAlk 
opemog E F. 
7 uj/jnita CO Microscopic i/yecu. 
Num^rn.« • ^ Carpenter, M.D., F.R.S. 
>ici.o S„XTari“l?=e“Tr'!>‘)-pe and other pWapWe copi«rf^ 
obtained by the use of exhibited. These were peculiarly ^ 
or plate instead of upon the *‘"’' 1 *" “r^!^ 5 
application of the art to tie a^TenUorS 
itmrni ^ Jiadiadons which hai'e 
fo rccei,^ or reject conditions of Daguerreotype Pidii, 
reject Mercurial Vapour. By M. Claudet. 
Me Precipitate caused in Sprivy and River Waters by AcetaU 
^’early nil wrll n i • Professor Connell. 
acetate of lead. ThU I?“ t® yield a white precipi»‘ 
precipitate is rarely due to any chloride, as silver saitfl^ 
