E. 
COMPOSITION OP ALLOYS OF TIN AND LEAD, WITH MELTING 
POINT OF EACH, ACCORDING TO A TABLE SUPPLIED BY 
PROFESSOR ABEL, F.R.S. 
Tin. 
Lead. 
Melting Pt. 
Tin. 
Lead. 
Melting Pt. 
Parts. 
Parts. 
Degs. Falir. 
Parts. 
Parts. 
Degs. Falir. 
2 
..... 1 
340 
4 . 
. 9 ... 
. 460 
9 
4 
344 
4 
.... 12 ... 
. 482 
10 
... 4 
... . 348 
4 . 
.... 15 ... 
. 494 
11 .... 
. 4 ... 
. 352 
4 
. 17 ... 
. 502 
12 
4 
356 
4 . 
.... 20 ... 
. 512 
13 
. . 4 ... 
. 360 
4 
. 26 ... 
. 520 
17 ... 
. 4 ... 
. 370 
4 . 
. 30 ... 
22 
... 4 
380 
4 . 
.... 38 ... 
. 540 
4 
5 
. 390 
4 . 
. 40 ... 
. 550 
4 
. 6 
. . 412 
4 . 
.... 70 ... 
. 55S 
4 .... 
. 7 ... 
. 420 
E. 
MEMORANDUM OF RESULTS OF EXAMINATION OF SAMPLES OF 
, GUNPOWDER, AFTER REMOVAL FROM MESSRS. MILNER’S 
FIRE-PROOF GUNPOWDER MAGAZINES. 
1. Powder canister, the contents of which had escaped ignition upon the explo¬ 
sion of No. 2 magazine—9 out of the 10 canisters stored in this magazine having 
exploded. 
The powder in this canister was quite unchanged, with the exception of about 
2 ozs. nearest the mouth of the canister. Moisture had penetrated to this part, and 
the grains had become soft and caked together. 
2. Four canisters from No. 4 magazine—which had not exploded. In two of 
these, the powder was quite unaltered; in a third, about 2 ozs. of the powder, near 
6 
