1831.] 
Miscellaneous Notices. 
89 
VII .^—Miscellaneous Notices. 
1 . — Mortality in Calcutta. 
The following list of Protestant burials is believed to be tolerably correct. The 
results deducible from it are rather different, we believe, to the conclusions general- 
ly acquiesced in; we mean the superior healthiness of the years 1829-30. In 1829 
the deaths appear to have been but two-thirds of what they were in 1822. If the 
number of Protestant inhabitants could be accurately ascertained, we should have 
some grounds for inferring the value of life in Calcutta. Perhaps some of our readers 
could give us some information on this subject. 
Burials in Calcutta of Protestant Christians. 
1820, 281 
1821, 246 
1822, 324 
1823, ' 270 
1824, 278 
1825, 297 
1826, 275 
1827, 254 
1828, 256 
1829, 184 
1830, 224 
2. — Elevation of the Station of Health at Ckerrapunji. 
From a series of corresponding observations made in October last, at this station, 
and in Calcutta, with Barometers previously compared, the following results were 
deduced. 
By 10 observations made at 10 o’clock, the height seemed to be 4282 feet. 
By 10 do. do. at noon, 4289 
By 7 do. do. at 4 p. m. 4287 ,, 
Mean, 4286 
3. — Mr. Muston's Method of restoring damaged Drawing Paper. 
A wash is composed of isinglass one drachm, steeped for twelve hours in two 
ounces of water; then simmered for 15 or 20 minutes over a fire. When nearly 
ready, add twenty grains of common alum, in powder, and strain it through linen 
for use. 
I apply this wash when the paper is on the drawing board, and damp : and I work 
it with the flat brush so that the wash shall be absorbed. 
When dry, I wash the paper with clean water, which tells me if a second wash be 
necessary. When the paper is recovered, I wash it again with plain water, and a flat 
brush, to take off any superfluous isinglass, and then absorb the superfluous water 
with a clean piece of rag. When nearly dry, I throw in my sky, &c. as usual on 
good paper. 
4.— Demonstration of the Theorem, pages 160, 161. Vol. 1 . Tr. Survey . 
PA being the Meridian of Greenwich and GE and SD perpendicular there- 
to, they are great circles, and of course they gradually approach each 
other till they intersect in the pole of PA — Their mutual distance at any 
intermediate corresponding point is as the sine of the distance from their point 
of intersection ; or what is the same thing, as the cosine of the distance from 
PA, the great circle passing through their middle, hence GS : ED ( = G R) : : 
Rad : cos. SD. t> c 
