tr.br 



a-v. 



Fig 31. 



Section of Lung. 



tijii'.. tritiiiiy lirniiclms ; a-v.. air-vesicles ; a., Inaiicl] iif iiuliiicmaiy artery. 



c s 



gl. 



• •. .. 



m: 



s.t. 

 Fig.32. 



Section of Kidney under Low M;ifinificHtion. 



(.-.s., eiii'tieal substance ; j;!., glcunerulus ; v., l)lii(nl-vessels ; s.t., stiaiglit lulmles. 



