-11- 
The patient then soon lost consciousness and died within a few 
hours. The concentration of methyl bromide in the air to which 
workers are exposed should not exceed 1.9 mg. in 100 liters. 
and FRISCH, S. (38) 
The effect of technically and hygienically important gases and 
vapors upon the organism. Brominated hydrocarbons of the ali- 
phatic scries. Aroh. f. Hyg. 101: 48-64. 1929. [in German.] 
Subcutaneous injection showed that tctrabromocthane is six 
times, dibromcthane four times, and methyl bromide seven times as 
toxic as ethyl bromide. The toxic action of the vapors of dibromo- 
cthanc and methyl bromide is eight times greater than that of ethyl 
hromide vapor. The inhalation of tctrabromocthane vapor is without 
toxic result. Because of its greater volatility, the danger attend- 
ing the use of ethyl bromide is more than twice as great as that 
ettending the use of the more toxic dibromo ethane. Methyl bromide 
is still mere dangerous, and great caution should be observed in 
its use. The inhalation of subnarcotic doecs of dibromocthanc and 
methyl bromide may eventually result in death. The animals appear 
to tolerate large concentrations of the compounds for a short time 
better than ] or/or concentrations for longer periods. 
GOLDS CHMID, E. , and KUHN, E. (39) 
Brommethylvergif tung mit tddlichem Ausgang. Zentbl. f. Gev/erbe 
Hyg. u. Unfallverhutung 8: 28-36. 1920. 
Nine cases of poisoning occurred in a dye factory following 
the bursting of a large vessel containing methyl bromide. There 
were three deaths, and these cases all follov/ed the same general 
course a short period of feeling unwell followed by sudden epi- 
leptiform convulsions, loss of consciousness, disturbances of 
breathing and, in a few hours, death. The six other cases com- 
plained consistently of vertigo, headache, general weakness, and 
disturbance of equilibrium. 
GRONOW, W. E. (40) 
Die i-nvrcndung chemischer Sonder-Nassfeuerldscher in den gewerblichen 
Betrieben unter dem Gesichtspunkte ihrer Einwirkung auf die 
Benutzer. Zentbl. f. C-eiYerbc Kyg. u. Unfallverhutung (n.f.) 4: 
161-166. 1927. 
en used as a fire-extinguisher liquid, methyl bromide sho^s 
less tendency than carbon tetrachloride to for;. ' ful decomposi- 
tion products. As yet, robromic acid has been observed, 
which irritates the respiratory organs but possesses no toxic prop- 
erties. 
GUEFFROY, W. , and EHRHARDT, . ( :1 ) 
The halogenated hydrocarbons of the fatty series as solvents and 
their significance to the medic c. . Zentbl. „ v rbe 
Hyg. u. Unfallverhutung 25: 224-230. 1938. [in German.] 
These solvents as a class arc capable of producing acute 
poisoning and occasionally blood <• e. The lungs are the chief 
