550 HORSE, SWINE AND POULTRY DISEASES 



proved by the experiments of Eber and ourselves. The disposal of 

 cases of generalized tuberculosis is likewise an easy matter, for it is 

 evident that the infectious organisms have gained entrance to the 

 blood vessels, and by this means have been conveyed to all parts of 

 the carcass, infecting the meat more or less completely. The render- 

 ing of such carcasses in the offal tank is the only rational disposal 

 that can be made of them. 



. There are, however, other cases in which the development of dis- 

 ease has reached a stage which may admit some discussion as to the 

 advisability of using the meat for food. Many tuberculous hogs are 

 found that give no evidence of wasting, and that show on examina- 

 tion that the disease has not become generalized or extensive, al- 

 though it has advanced beyond the point of primary glandular in- 

 fection. Here the inspector must act carefully, trying to avoid the 

 waste or loss of any meats that may be safely converted into human 

 food, and at the same time being sure that nothing of a dangerous 

 character is allowed to enter the cooling or cutting rooms. 



If the lesions of tuberculosis in the animal under consideration 

 are so located that they may be readily removed, a third method of 

 disposing of the carcass may be selected. The carcass may be care- 

 fully trimmed, the tuberculous parts being consigned to the offal 

 tank, while the trimmed meat, comprising the bulk of the edible por- 

 tions of the animal, is placed in the lard-rendering tank, where it 

 must be cooked by steam at a temperature not lower than 220 F. 

 for not less than four hours for the extraction of the lard which it 

 contains. This temperature, of course, is sufficient to destroy any 

 bacilli that may possibly be present in the meat. (B. A. I. 25th 

 A. R.) 



Kidney Worms. Kidney worms are found both by the killing- 

 floor inspectors and by the trichina inspectors. The former have no 

 difficulty in discovering them with the naked eye, while now and then 

 the microscopist finds an entire kidney worm or part of one usually 

 the esophagus in examining for trichinae. 



Since it is unquestionably true that these parasites are not trans- 

 missible to man, either by means of the eggs or by the adult, and 

 since, in addition, the ordinary methods of cooking or curing in 

 vogue in this country would kill the worms even if they were able to 

 develop in man, there is no reason apparent for condemning the car- 

 cass of a hog simply because a few specimens of Sclerostoma pin- 

 guicola have been found in it. The infected portions should, how- 

 ever, be cut out and tanked, both from the practical standpoint of 

 the butcher, to render the pork more appetizing, and from the stand- 

 point of the inspector, to prevent so far as possible a further spreading 

 of the disease. If cases of infection which are so extensive as to alter 

 materially the condition of the carcass are met with, they will of 

 course be rejected both bv inspectors and by packers. (B. A. I. 

 Cir. 153.) 



GERMAN INSPECTION OP AMERICAN HOG PRODUCTS. 



Consul John A. Barnes sends from Cologne, August 3, 1898, a 

 report upon trichina, and adds that the health officials of Cologne 



