INDEX. 
page 
Mastication of ruminating animals , how performed, - 371 
Mechanic force defined, - - - - 16 
Medulla of plants , conveys no sap, - 295 
Microscopes , revolving, recommended for circular instruments, 425 
Minium, native, - - - - 267 
N 
Newton , Sir Isaac s, interpretation of the 3d law of motion, 
Nitric acid , its action on elastic bitumen, 
• • — — — — — Kilkenny coal, 
Cannel coal, - 
Newcastle coal, 
roasted vegetables, 
walnut peels, 
galls, 
oak bark, - 
guaiacum, 
us, 
iran, f 
a, J 
O 
Observations of some principal fixed stars, 
y Pegasi, 
■ oe Arietis, 
«. Ceti, 
• Aldebaran, 
Capella, 
— Rigel, 
— (3 Tauri, 1 
« Orionis, j 
• — — Sirius, 
Castor, 
Procyon, 
Pollux, 
Regulus, 
|3 Leonis, 
■ Spica Virginis, 
7 Arcturus, 
a Goronae, 
u Serpentis, 
• a. Ophiuchi, 
■ — a Lyrae, 
a Capricorni, | 
>U1S, j 
on, J 
“is, } 
hi, J 
Cygni, 
17 
115 
1 15 
ib. 
ib. 
118 
120 
122 
123 
93 
434 
ib. 
ib. 
435 
436 
437 
438 
439 
440 
441 
442 
444 
MDCCCVI, 
3 O 
kJ «v 
