286 



stating that even on the mainland the six injections, constituting one 

 treatment, are shipped on six consecutive days in order to avoid de- 

 terioration in transit. These difficulties have now been overcome. The 

 vaccine we are now experimenting with is made by the Cutter Labor- 

 atory of Berkeley, California, and is shipped in thermos bottles placed 

 in the refrigerator of any fast boat immediately before departure from 

 San Francisco. The boat is met upon arrival and the vaccine trans- 

 ferred to the laboratory of this office. As a further precaution, the 

 ground brain substance, or virus proper, and the dilution fluid come 

 fn separate containers and are not mixed until immediately before the 

 injection is to be made. Under these conditions the manufacturers 

 assure us that the vaccine will retain its effectiveness for at least two 

 months. 



The only drawback to this treatment is that we are dealing with the 

 unattenuated virus of an absolutely fatal disease, and while no cases 

 have been recorded of dogs developing rabies as a result of the vac- 

 cination, the manufacturers insist on the vaccinated animals remaining 

 in quarantine for one month after the last injection. We have now at 

 the quarantine station two dogs, one setter and one fox terrier which 

 passed the fifth week after vaccination, and eight other dogs^ including 

 four chow pups, which have received all six injections at varying 

 periods of from one to three weeks past. None of these has so far 

 shown any unfavorable results from the treatment, ^^^len these eight 

 dogs have passed the requisite period of one month from the last in- 

 jection, an amendment to the present dog quarantine regulation covering 

 the subjects under consideration will be submitted to the Board. 



Importation of High-priced Dairy Cattle from Non-accredited Herds 

 on the Mainland. 



An unusual large number of high class breeding stock has arrived here 

 during the past two months. An importation of Holstein cattle for the 

 Parker Ranch, consisting of five young bulls and twenty heifers is 

 valued at $40,000.00. One bull calf and one heifer cost $5,000.00 each. 

 They all came from New England and were selected by Professor W. L. 

 Williams of Cornell University. They were accompanied on the entire 

 trip by Dr. Adrian M. Mills, a graduate of the New York State A^ete- 

 rinary College, Cornell University, who will remain in charge of this 

 new dairy herd. 



As these animals did not come from a government accredited herd 

 they had to be retested. Fortunately they all passed the test. Had any 

 of them reacted they would have had to be either slaughtered here or 

 returned to the former owner. In the first case the owner would not be 

 entitled to any compensation, if upon post-mortem examination, lesions 

 of tuberculosis were found to be present. Otherwise the Territory 

 would have had to pay the full appraised value or, in other words, what 

 they had cost landed here. 



As the tuberculin test is not infallible, I attended to the retest, which 

 was made on the Parker Ranch, in person. To prove the presence of 

 tuberculosis in cattle which have passed a careful tuberculin test less 

 than two months previously and which have not been exposed to in- 

 fection during that time is far from easy. The lesions in nearly all cases 

 will be found to be very small and may be located in out of the way 

 places as, for instance, inside a joint. In such a case it may become 

 necessary to cut an otherwise perfectly good carcass to mince meat, 

 whereby additional loss is caused. 



We are how^ever confident that the tuberculin test originated here, 

 the intrapalpebral test, is the most reliable of them all, and that when 

 a decided reaction occurs the lesions can be found in 99% of the cases, 

 if not in all. 



Another importation arriving in August consisted of 35 high grade 



