PNEUMONOMYCOSIS 333 



dustry, U. S. Dept. of Agriculture, 1895-6. p. 229. (This report con- 

 tains a bibliography on Bursaitee. ) 



3. Neal. Leeching of horses and cattle. Annual Report, 

 Bureau of Animal Industry, U. S. Dept. of Agriculture 1887-8 p' 

 489. 



PNEUMONOMYCOSIS. 



§ 250. Species of fungi. The literature contains a num- 

 ber of reports of cases of mycosis in the lower animals as well 

 as in man due to infection with different moulds. The genus 

 Aspergillus seems to infect and to produce lesions in animals 

 more frequently than the members of other genera. In fact, 

 Aspergillus fumigatus s&evas to be the only important pathogenic 

 species. The lesions encountered as a result of its invasion are 

 largely restricted to the respiratory tract. Pneumonomycosis 

 has been reported in a number of cases. Cadeac, Schneide- 

 miihl, Friedberger and Frohner, Ostertag and Kitt have all 

 called attention to mycotic pneumonia. Renon considers the 

 lesions resulting from aspergillus infection as a pseudo-tuber- 

 culosis which he would designate as " Aspergillar tuberculo- 

 sis." Aspergillar pneumonia is, however, quite rare. 



§ 251. Description and method of cultivation of the 

 mould. The aspergillus fungus is readily cultivated artifi- 

 cially. It grows on most of the ordinary culture media used 

 in bacteriology if the reaction is acid ; it develops poorly in 

 alkaline media. The well-known Raulin's fluid is reported to 

 be the best medium for its cultivation, especially where the 

 aspergillus must be isolated from mixed growths, as in the ex- 

 amination of sputum. Sabourand's* solution of maltose also 

 gives good results. 



*The formula recommended by Ravenel is as follows : 



Maltose, 3 70 grams. 



Peptone, 0.75 grams. 



Distilled water, 100.00 c. c. 

 To this may be added gelatin or agar to solidify it, the latter being 



preferable, as the aspergillus grows best, and forms fruit best at 37° to 

 39° C. 



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