278 
EXTRACTS FROM EXCHANGES. 
• Saturnism in Horses [By MM. Mosselman and Hebriant\. 
—Lead poisoning is comparatively rarely observed in horses. 
Some experiments of Hortwigt, Dominik, and Gerlach, show 
the great resisting power of solipeds to the toxic action of lead 
salts, and yet there are a few cases on record—such as those of 
Trousseau, Ramque, Stotz, Reiner, Meyer, and Schmidt—in 
which one of the principal symptoms has been the manifesta¬ 
tion of laryngeal trouble, shown by a more or less marked 
roaring. The authors resume the investigations that they have 
made and the interesting conclusions they reached from cases 
observed on a farm situated some 600 metres from a lead fac¬ 
tory. On that farm all the plants are poor, sickly, and covered 
with more or less dust; the dew is always dirty. I11 that ex¬ 
ploitation three colts and two animals died ; another which was 
taken sick was treated with iodide of potassium and improved. 
It was again taken ill and ultimately died. Two others died 
also. After post-mortem of these three subjects, chemical an¬ 
alysis revealed the presence of lead. The balance of the stock 
was submitted then to a treatment of iodide-of potassium, and 
the roaring which had been a manifestation of the sick animals, 
was soon relieved and recovery complete in two months. In¬ 
quiries were made in relation to several cases of death which 
had occurred among the cows and the fowls of surrounding 
places, but no information could be obtained except that the 
grass that was given to them had been cut from the lands of 
the farm surrounding the lead factory. The food (hay and 
seeds), the earth of the place, were then analyzed, and from 
them also lead was extracted in quite large quantity. The con¬ 
clusions drawn by the authors are very interesting: (1) The 
earth of places surrounding lead factories may contain a certain 
amount of lead and be the starting point of lead poisoning. 
(2) The vegetables growing on such land contain a certain 
quantity of lead and may be toxic, if not by assimilation of 
the lead in the plants, by the atmospheric dust, dew and earth 
deposited on them. From the observations collected the authors 
say : u If the dose of lead is sufficient, saturnism may occur and 
prove fatal rapidly. The toxic effects are principally marked 
011 the pneumogastric through its inferior laryngeal branch, 
hence the roaring. Bovines and fowls must not be allowed 
pasturing or feeding on suspicious lands on account of their 
proximity to lead factory .”—(.Annales de Belg .) 
Vermicular Broncho-Pneumonia and Tuberculosis 
[By Prof. T. Henkrickx \.—Every practitioner knows how dif- 
