O 012 



0016 



O 020 



O 00 4 O 008 



Miiss (if aiilivdl'cus Salt in iniil muss of Siilulion. 



To illiistr;itc Piol'. Nf.ifGrc^or's 1 *a|»or on the Dcnsily of Weak 

 Aqueous Solutions nl'certain Salts. 



O 024- 



THE BURL*ND LITHCO MONTRtAL 



