}
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tion, we note the publication of a research into Hæmorrhagic Septicemia in animals, by WOOLLEY of Manila. Our experience in Hongkong fits in closely with the results of this Pathologist.
In general, the lungs, if affected during the course of the disease, present lesions suggestive of Broncho-pneumonia with occasional abscess formation. Changes in the pleura are by no means constant, but small hæmorrhages into the membrane may be found. Occasionally the pleura is found thickened and covered with a fibrinous exudate. The thickening is usually the result of dema: This œdema is of a gelatinous nature and infiltrates the pleural and sub-pleural tissues as well as the surrounding mediastinal connective tissue.
The lungs only partially collapse; they are frequently emphysematous. In the majority of instances, these are practically all the changes found.
In others, however, areas of consolidated lung tissue may be felt. These are represented by nodules like those found in acute catarrhal pneumonia. Again, larger areas of consolidation may be met with giving the lungs the appearance of hepatized tissue similar to the condition found in acute fibrinous pneumonia. Section of these lungs gives the following appearances:---
The small areas of consolidation appear as soft frog-spawn like masses, like that found in typical Broncho-pneumonia.
The large areas are dark red or greyish in colour, producing often a marbled appearance. Similar to the condition found in red and grey hepatisation of acute fibrinous pneumonia. A still more advanced pathological condition may be found in these organs. Section of the lungs may show the presence of multiple abscesses. These vary much in size and shape and their contents are of a greenish yellow, gelatinous and puriform nature. Such a condition of lung would appear to be occasioned in chronic cases of the disease only. The abscesses are embedded in strong bands of connective tissue, producing an intensely fibrous condition of the lung. Such strands of fibrous tissue are usually soft, swollen and infiltrated with gelatinous cedema.
This condition at the height of its development produces a characteristic honey-combed appearance of the lung. The microscopic examination of the puriform material shows the presence of numerous bi-polar shaped bacteria which on further cultivation have proved to be the B. Septicemia Hæmorrhagicæ. So far as our experience goes, changes in the skin are rare. BOLLINGER'S Exanthe- matic type of the disease has not been observed. Joint lesions are also rare.
In conclusion it may be as well to draw attention to the possibilities of the establishment of a cattle breeding industry in the Colony. At first sight the pro- secution of such an industry would appear to be an easy matter. Land area for this purpose is infinite, the question of sufficient pasture might be overcome. European cattle appear to thrive, under certain conditions, in some districts of the Colony, and such an industry is, from many points of view, important for a Colony like Hongkong.
However, before making up our minds as to the establishment of such an industry, questions of great importance must be faced. Questions regarding the possibility of a sudden decimation of large herds of cattle from so-called Rinderpest must, in the light of past experience, be carefully considered before such an under- takmg is decided upon.
In our preliminary report, we drew attention to the fact that in the disease known as Hæmorrhagic Septicemia one had to deal with a factor of no small significance, should such a project become an accomplished fact. In our present report one finds the condition of affairs in regard to disease more complicated than
ever.
Not only have we now to face so-called Rinderpest and Hæmorrhagic Septi- cæmia, but other obscure diseases, the effects of which, under certain circumstances- render the successful prosecution of a cattle breeding industry a hazardous under, taking.