OXYGEN AS A THERAPEUTIC AGENT. 
91 
each space for two communications, it assumes that no fault can 
be found with its desire to see fair play. 
Montana has secured a model law protecting her food sup¬ 
ply, mainly through the efforts of State Veterinarian M. E. 
Knowles. When a State in the far West can accomplish so 
much through the single-handed energy of one enthusiastic vet¬ 
erinarian, populous Eastern commonwealths should not longer 
remain benighted. We congratulate Dr. Knowles on being a 
veterinarian, and the profession on possessing him as an honored 
member—but we cannot advocate Helena for the meeting of 
1902. 
Nebraska is in line with a State Veterinarian and deputies. 
The members of the profession in that commonwealth are plac¬ 
ing a scotch behind every turn of the wheel of progress, and 
they are deserving of the best laws that can be enacted. 
ORIGINAL ARTICLES. 
OXYGEN AS A THERAPEUTIC AGENT. 
By Dr. J. Campbeeu, Chicago, Iee. 
Read before the Chicago Veterinary Society, December, 1900. 
Oxygen was discovered by Priestly in 1774, the honor of its 
discovery being divided with Scheele. He demonstrated the fact 
that dogs, rabbits and other animals, immersed in an atmos¬ 
phere of oxygen became more lively, active and brilliant; that 
the dogs cpuld endure greater hardship and a longer chase when 
allowed to breathe the gas for a short time before the start than 
similar animals not thus prepared. Later, these results were 
confirmed by Lavoisier, who still further demonstrated the fact 
that the muscles of animals repeatedly subject to the influence 
of oxygen gas became decidedly firmer than the muscles of those 
who were not subject to the influence of the gas. Among the 
earliest investigators of repute were Dr. Beddoes and Sir Hum¬ 
phry Davy ; they were also assisted by some of the most emi- 
