The Montgomery advertiser., 1906-06-17
HOPES TO DESTROY
 "WHITE PLAGUE"
CERTAIN SUCCESS REACHED IN THE REMUNERATION OF CATTLE.
Experiments Are Now Under Way to Apply Similar Treatment to Hu- man Beings-Result Most
 Encouraging.
Philadelphia special to the New Yori

Philadelphia special to the New York
 Herald.
 a Of far more importance in the opin- ion of all who have watched Dr. Leo nard Pearson's experiments In immu- nizing cattle from tuberculosis, than the saving of millions of dollars worth of cattle every year is the effect of hls discoveries on the treatment of tuber- culosis in man.
 Not only has the University of Penn sylvania officially announced the dis covery of an absolutely certain preven- tive of tuberculosis in cattle. but every test so far made conforms the belief that very soon human beings can be made immune to the Sgreat white plague"
 The experiments with cattle having been entirely successful since their be- ginning in 1900, Dr. Pearson Is now continuing his experiments with mon keys, with results equally gratifying The next step will be to apply the same methods to human beings, and 1t Is not doubted that success will Follow.
 pr. Pearson is dean of the veterinary department of the Pennsylvania State Veterinary bureau and assistant direc- tor of the Henry Phipps Institute for the Study, Prevention and Treatment of Tuberculosis. In the experiments W1In H1CnkeyS HOW NoS Dh' h M Gilliard is associated with Dr. Pearson.
 Perfect Immunization.
 'The results of the vaccination of monkeys are most encouraging" said Dr. Pearson. They are link in the chain of experiments which have the immunization of man from tuberculo- sis as their object
 what the result of vaccination of cattle is we know absolutely. It Is perfect immunization where the cattle are not diseased and arrest of the tu- berculosis where the disease has been contracted.
 We have reasons to believe that the same results will be achieved through the vaccination of tuberculosis mop- keys. What the result will be when we come to apply the treatment to man I will not venture to predict9
 The serum which produces immuni- zation has its origin in living tuber- cles from the body of man. Cultures have been made and propagation has taken place in flasks of glycerine veal broth.
 The attenuated. enfeebled bacilli which are used in vaccination are ex- actly 200 generations removed rom their yirulent parent germs. As fast AS reproduction tskes place In one flask the new growth Is removed 10 an other and a third generation IS Teareo So the process continues until Zoo re movals have been made from flask to flask.
 Cultures which are taken after the two hundredth reproduction are made ready for infection. They are taken from the surface of the glycerine veal broth in the form of film which Tn it's cohesiveness and toughness resem- bles a bit of skin. This film Is then placed In a flask in which are a nun her of iron balls. This flask is shak- en violently and the film IS ofoheh and ground into powder.
 Tbe substance thus obtained Is di- ,ute6 in a normal salt solution. the nronortion of salt being four-tenths or one per cent, of preparing the Vaccl- hating fluid, while tedious and requires expert handling and constant care IS
 r, is estimated that s2.ooo.ooo worth of cattle a year will be saved In Penn- sylvania alone by the pearson tre ment, and that It's application to the entire country will mean a saving oi more than s1.000,ooo.o0o.
 Trained experts will begin the work of vaccination in this State this week Enough serum has been prepared to keen them busy for months.
 Other States will be provided with immunizing serum as fast as the cui- tures can be made. It is likely that distrihution will be made through the state Department of Agriculture to other agricultural departments and that arrangements will be made for the instruction of the veterinarians ana bacteriologists of other States by pr. Pearson and his assistants.