064 
Name of Gas. 
Carbon dioxide, . 
Nitrous oxide, . 
Sulphuretted hydrogen, 
Carbon bisulphide, . 
Ammonia, . 
Methane, 
Methyl chloride, 
Methv! bromide, 
Methy] iodide, 
Methylene chloride, 
Chloroform, 5 
Carbon tetrachloride, . 
Silicon tetrachloride, . 
Ethylene, . : 
Vinyl bromide, . 
Ethane, : 
| Ethyl chloride, . 
Ethyl bromide, . 
Ethylene chloride, 
Ethylidene chloride, 
Allyl chloride, 
Allyl bromide, 
Propane, . 
| Normal propyl chloride, 
Isopropyl chloride, 
Isopropyl bromide, 
| Ethyl formate, 
Methyl acetate, . 
Mercury, 
Argon, 
= Hydrogen, 
2» . | Nitrogen, 
® S | Carbon monoxide, 
a a Hydrochloric acid, 
Ss Hydrobromice acid, 
a Hydriodic acid, 
3 . (Chlorine, . 
= S | Bromine, . 
Q 
2 a Iodine, . 
5 Todine chloride, 
Scientific Proceedings, Royal Dublin Society. 
tSiee Computed 
: = 2 Observed Wailea 
Chemical Formula | ‘6 8 Weiler 
of Molecule. BIS of y 
2s i 
a m m—-3 
3 | Hg | 1. | 1:67 | 3°0 0:0 
: | Not yet known. | 1°65 | 31 0-1 
He 1:41 4°9 1:9 
Ne 1°41 4°9 1:9 
co 1:40 5:0 2°0 
HCl 1:39 5:1 271 
HBr 1:42 4°8 1:8 
HI 2. 1°40 5°0 2-0 
Cle 1°32 6:2 3°2 
Bre 1:29 6:9 3°9 
I, 1:29 6°9 3°9 
ICl 1°31 6°5 3°5 
C02 1°308 6°5 3°5 
N20 1:310 6°5 3°5 
SH, 3 1°340 5:9 2°9 
C82 1:239 8:4 54 
NH3 4 1:30 6°7 37 
CH, 1°313 6°4 3°4 
CH3C1 1:279 12 4-2 
CH3Br 1-274 1:3 4°3 
CHsI 1-286 7:0 4-0 
CH2Cl. 5. 1:219 9°2 6°2 
CHCl; 1°154 | 13:0 | 10°0 
CCl, 1:1380 | 15°4 | 12°4 
SiCl, 1°129 | 15°6 | 12°6 
C2H4 1°260 77 4°7 
C2H3Br 6. 1-198 | 10°1 71 
C2H. 1-180 | 11:1 8-1 
C2H;5Cl 1:187 | 10:7 Cou 
C2H;Br 8. 1:188 | 10°6 76 
C2H4Cle 1°1387 | 14:7 11°7 
C»H4Cle 1:134 | 14°9 | 11:9 
C3H;Cl 1:187 | 14:7 | 11-7 
C3H;Br 9. 1:145 | 13-9 | 10°9 
C,H;0OH 1:183 | 15:1 12°1 
C3Hs 1:1380 | 15°4 | 12°4 
C3H,Cl 1:126 | 15:9 | 12°9 
C3H,Cl 1:127 | 15-9 | 12°9 
C3H,Br 11. 11381 | 15°4 | 12°4 
HCO-0C2H; 1:124 | 16:1 13°1 
CH3CO:OCH3 1°137 14°7 11°7 
