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£93 Miscellaneous Intelligence. 
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totally : the objects look exactly as if they were painted on a plane sur- 
face. |B e ordinary combination of the two Galileo’s telescopes, bs 
0 
telief than a single one. But in the usual construction of the instrument 
the relief is false: the objects appear as if they were squeezed together 
in the direction of depth. In the case of human faces, on which, for the 
most part, opera-glasses are directed, this is very striking. When they 
are regarded from the front, they appear much flatter than they really 
are, and when looked at in profile, they appear too narrow and sharp. 
In both cases the expression of the countenance is essentially altered. 
2. Inquiries into the Quantity of Air inspired throughout the Day and 
Night, and under the influence of Exercise, Food, Medicine, T empera ture, 
ake. by Eowarp Sart, M.D.. (Proc. Roy. Soc., L. E. and D. Phil. Mag, 
xiv, p. 546)—This communication cousists of three parts and contains 
the results of 1200 series of observations. The author was himself the 
subject of all the investigations. Ile is thirty-eight years of age, six 
“ in height, healthy and strong, and with a vital capacity of the lungs 
The paper concludes with a summary of the principal results obtained 
ion or elucl 
g facts are 
for intervals amounting altogether to 40 minutes, during W 
vot recorded) was 711,060 cub, ins.; or an average of 29,627 cud the 
per hour and 493 6 per minute. The quantity was much less during: 
uight than during the day. There was an increase as the morn) woah 
and a decrease at about 84 30™ p, m., but most suddenly atl 
11 p.m, During the day the quantity increased immediately after 4 
