Fig. 3. 



"7" S ■ ' ,1 





Invirum.— The nildcr secretion of n cow that has recentlv calveri. Stainc.l lightly with 

 iismiiaeiil, cansiii;,' I In. fat glol>iil(>< to become dark. Shows several eolostniin Uxlu-s 

 ami fat globules. Micropliotograph, 



