130 Analyses of Books. ([Fes. 
Exter. | Inter. 
Hour, |Therm.| Therm. 
oo 
1813. 
Dec. 31, Eyening..| 5° 40’; 2:89 | 4:1 |G, W.E. Very fine. A slight fog, 
Hoar frost. Wind S.8, W. slight. 
" 8 0) 15 4:1 |G,M.E, and G.M.1. Very fine. 
Very thin clouds at the horizon. 
Very slight feg. Wery slight wind 
1814. N. W. 
Jan. 1, Morning .. , A thick fog. 
15} 06 39 |G.M.J, Slight fog. Fine above. 
Hoar frost. i 
G. M. I. and G.M. E. More moist 
externally than internally. Fog. 
Little wind. 
Ou 
iu) 
So 
oS 
a 
= 
o 
° 
= 
o 
o9 
oOo 
Evening .. 
9 50| 03 | 38 |G.M.I. and G,M.E, Slight fog, 
Very fine. Calm. 
Jan, 2, Morning ..{11 40] 2°6 3°7 
Evening ..| 2 40] 3:8 37 
6 40; 18 3:8 |G.R.E, Very fine. Scarce per- 
ceptible fog. Calm. 
oO Ore 37 |G.M.E. and G.W. 1. Very fine. 
Scarce perceptible fog. Calm. 
N.B. All these observations were made at Montauban. The 
window looked towards the west; and the external thermometer 
fixed in the middle of the window was turned to the north. 
G.M. I. signifies glass moistened internally. 
G. R.1., glass running down with moisture internally. 
G. W. I., glass wetted internally. ° 
G.M. E., G.R.E., G. W. E., the same externally. 
Se ee 
ARTICLE XII. 
ANALYSES oF Books. 
Philosophical Transactions for 1815, Part I. 
Our account of this volume will be shorter than usual, as the 
greater number of the papers which it contains have been noticed 
in the Account of the Improvements in Physical Science, which 
occupies the larger part of the last number of the Annals of Philo- 
sophy. It will be necessary, therefore, in most cases, merely to 
refer to the page in our last number containing the abridgment of 
the paper in question. 
This part contains the 15 following papers :— 
1. On some Phenomena of Colours exhibited by thin Plates. By 
_ John Knox, Esq. (See Annals of Philosophy, vol. vii. p. 8.) _ 
2. Some further Olservations on the Current that often prevails to 
° 
