INDEX. 
361 
Nitrate of potassa and soda, . . i . .86 
«* silver, ....... 93 
" mercury, ...... 93 
Nitric acid, action on the chlorates, iodates and bromates of potassa 
and soda ....... 225 
Nitric acid, . . . . . .73 
« . ..... 203 
44 concentration of ..... 261 
Nitrogen, means of concentrating ... - 222 
" source and^assimilation in plants, . . . 230 
Note on minium, ....... 169 
" preparation of tannin, . . . . ,171 
44 vanilla, ..... .191 
Notices, pharmaceutical ..... 101 
Observations on Asarum canadense and Asarum Europceum . 177 
" blistering- plaster, , 302 
Oil, concrete, of cocoa ...... 16 
'• cod . . . . . . .86 
" of ergot, ethereal ...... 95 
44 phosphorus, ...... 104 
44 hyoscyamus, . . . . . .106 
44 St. John's wort, . . ... 106 
Ointment of itch ...... 85 
44 citrine ....... 101 
Opii Tr. ammoniata ...... 263 
Organic analysis, mode of estimating nitrogen in . 224 
Oxalic acid, ....... 93 
Paullinia, use of guarana under the name of . .53 
Pepper, culture of, "in India, ..... 134 
Perchlorate of the oxide of ethule, . . . .32 
Perchloric ether, ....... 32 
Pharmaceutical notices, . 101, 183, 288 
Pharmacopoeia, report on ..... 265 
Phosphoric acid, on the composition of . . .86 
" " . 202 
Phosphorus,"oil of ...... 104 
Photography, ....... 247 
Pills, modification of the process of Garot for covering . 77 
44 of protiodide of mercury, ..... L 105 
44 dinner ..... . 105 
Plaster, isinglass ...... 320 
Platina, deuto-chloride of . . . . . .94 
VOL. VII. — NO. iv. 46 
