Punctiform Hemorrhages of the Brain in Gas Poisoning.

Mott discusses the causes of puπctiform hemorrhages of the brain that have been observed in cases of death from shell shock' with burial, and in fatal cases of gas poisoning.In 1907 the author noted the presence of such hemorrhages in cases of poisoning due to the inhalation of С О employed in the manufacture of nickel.In these cases the appearance was the same as in those of suicide by illuminating gas.The author explains the presence of miliary hemorrhages in the white matter of the cerebrum and basal ganglia, and not elsewhere in the brain, on the following grounds :1. Anoxemia causes the heart to beat faster, and thus to do more work with less oxygen, causing fatty degeneration.2. Irritative and degenerative endothelial change in the cerebral capillaries, as shown by mitosis of the nuclei, and a fatty degen eration, made apparent by osmic acid staining.These changes may be due to С О in the serum, but they may be aggravated by