598 Prof. Brodie and Mr. Mackenzie. On Changes in the 



Expt. 11. — R kidney, resting. L. kidney, decapsulated and secreting 

 freely. 





E. 



L. 







a. 



Glomeruli and capsules — 







Equatorial diameter 



100-4 



112-0 



Polar diameter 



73-6 



95-2 



Space 



3-0 



14-6 





87 



Woo 



„ „ glomerulus 



84 U 



89 



Approximate volume capsule 



O O 



139 



„ „ glomerulus 



74 



o o 

 8b 



fluid 



a 





Convoluted tubules — 







Proximal. External diameter ... 



46-0 



42-0 





1-4 



19-4 



Distal. External diameter . . . 



24-0 



28-0 



Lumen 



10-8 



17-6 





grm. 





Weight of E. kidney 



8-4 





„ L. kidney 



, 10-6 





In this experiment the changes are entirely in the same direction as in 

 the preceding, and the magnitude of the various changes is also approximately 

 the same. If anything, the free kidney in the preceding experiment showed 

 rather greater changes in comparison to the resting than did the decapsulated 

 kidney of this experiment. The difference is, however, accounted for by the 

 fact that the diuresis in Experiment 10 was greater than in Experiment 11. 



The increase in volume of the capsule is to 170 per cent., of the glomerulus 

 to 119 per cent. One notable difference is that in this experiment the 

 external diameter of the proximal convoluted tubule was less after diuresis 

 than when at rest. 



III. Comparison of a Free Kidney with a Free Decapsidated Kidney. 

 Expt. 3. — E. kidney free. L. kidney free and decapsulated. 



E. L. 



Glomeruli and capsules — 



Equatorial diameter 135-2 142-4 



Polar diameter 100-8 112-0 



Space 15-2 20-6 



