38 REPORT—1863. 
Bismuth-lead Series. 
Mean of Calculated 
Alloy specific gravity, 
Specific gravity from volume. 
found 
LL 5 eee a 9-844 21:7 9:845 
IBIOME Dahe.t he yon hae 9-845 21°6 9-850 
Bib ice oan 9-850 21:3 9-856 
Bi SP i ion te ee 9:887 20-6 9-877 
Ta at Wai evo alee 9-893 19:5 9-887 
Hips shee a 9-934 211 9-902 
Big die ay, bt Us 58.028 9-973 15:0 9-927 
Bei Scr he ee Y 10-048 10:7 9-974 
Bs ey he EE Re 10-235 12:5 10-098 
Fe keg Sagat Se eogtaonaa 10-538 14-0 10-290 - 
2 Gg ae ge ak a 10-956 14-9 10-541 
12 Tage, Rng el ama le 11:141 12:7 10:805 
OLS i ape at tad 11-161 148 10-942 
Mag st eA ep gap 11-188 20°8 11-026 
Bi 1 SLi aah ae 11°196 20-2 11-083 
Picepe toe wee 11-280 92-5 11-238 
Bi 1 ol Pete Bieiicsca/ate 11:331 23:0 11°340 
Tin-gold Series. 
Mean of Calculated 
Alloy. specific gravity, 
Specific gravity from volume, 
found. 
Barra. drdertien. bas 7-441 22:9 7-446 
BD NRE sxe asi. Pak 7801 22:8 7-786 
Bair AM 4 ste lewex'ens § 8-118 22°4 8-092 
eA ith fa ay ONG 8-470 © 23-1 8-452 
ene Am tiaiatae ian k 8931 25°6 8-951 
Ra what: Bente Je 9:405 23-7 9-407 
BRERA Ta! cidiats sia e's x2 9°715 92-4 9-743 
Rie etiy lala de fale lts x 10:168 23°7 10-206 
BI hts big athe ala etal 10-794 23°6 10-885 
DHt Baul emetic sala 11:833 14-6 11-978 
Sn CANS. ue). seeing 14-244 14:2 14-028 
Si “We ee eas 16367 15:4 15-913 
Now I do not think it possible from such small differences as the above to 
deduce anything definite respecting the chemical nature of the alloys ; still, 
as we shall see, they help in some cases to confirm deductions from other 
properties. 
2. Crystalline Form.—When zine and antimony are fused together in 
