318 THE NATURE ANt) TREATMENT OF 



best remedy, under such circumstances, is diluted pyroligneous 

 acid, in the following proportions : — 



Pyroligneous Acid, 3 ounces. 



Water, 15 ounces. Mix. 



Let the parts be well cleansed, night and morning, with a 

 portion of the above. 



Should any undue amount of swelling ensue, the parts are 

 to be rubbed occasionally with an ounce or two of sweet sj)irits 

 of nitre. 



I find that exercise operates favorably in preventing scrotal 

 swelling, which is a condition of the parts known to surgeons 

 as local effusion — dropsy ; and, as exercise at pasture always 

 tends to reduce these kinds of swellings, I generally, if the 

 weather permits, place the castrated animal under the care of 

 " Doctor Greeriy^ — a good pasture, — where the patient can 

 vitalize its blood with pure air, promote the integrity of the 

 whole system by voluntary exercise of the muscles, and partake 

 of herbage calculated to benefit the whole animal economy. 



ENZOOTIC MILK SICKNESS, OR TREMBLES. 



The cause or origin of enzootic milk sickness, — commonly 

 denominated trembles, — is a subject of much speculation. 

 Various are the opinions and conclusions of medical and non- 

 medical men. It has been asserted tliat a creeping vine, 

 known to luxuriate in forest regions, occasions the disease. 

 The theory is that this vine, or vegetable parasite, is matured 

 in the latter months of summer, or the first autumnal, at which 

 season of the year the grass becomes dry and tough, when the 

 cattle resort to the timbered land for sustenance, feeding upon 

 the (supposed) vine ; and as the animal is (without satisfactory 

 evidence) susceptible to its (imaginary) influence, it often sick- 

 ens and dies ; yet, strange to relate, many animals located in 

 the same regions escape the pest. And, in order to sustain this 

 faulty theory, we are informed that the lucky creatures who 

 live and die at a respectable bovine age, know enough to give 

 the poisonous plant the go-by. This is nothing more than 

 mere speculation, for the disease very frequently occurs when 



