/ 



350 • Dr. A. du Pre Denning and Mr. J. H. Watson. [May 7, 



Table VII. — Showing Values of 77 under Different Pressures with varying 



Number of Corpuscles. 



Capillary bore = - 3 mm. Temperature = 32 0- 2 C. 



Pressure 



Time of 





Pressure 



Time of 





(corr.) . 



outflow. 



V- 



(corr.). 



outflow. 



V- 



Plasma. 



+ 3'6 x 10 6 corpuscles per cubic millimetre. 



Cm. Hg. 



Sees. 



C.G-.S. units. 



Cm. Hg. 



Sees. 



■ 



C.G-.S. units. 



15 -6 



22-8 



-0138 



12-8 



65-8 



-0332 



13-5 



27-4 



0-0143 



10 -1 



85 -0 



-0338 



11 3 



33 -4 



-0145 



7-7 



112 



-0342 



8-0 



47-2 



0-0145 



5-0 



168 



0332 



4 •(> 



80 -3 



0142 



2-2 



410 



-0347 



2-6 



141 -7 



0139 









+ 6 x 10" corpuscles per cubic millimetre. 



+ 9 - 6 x 10 s corpuscles per cubic millimetre. 



16-0 



85 -0 



-0538 



17 "6 



138 -0 



-0964 



14 -4 



95-2 



-0550 



15 -6 



158 -0 



-0972 



10 -4 



134-0 



-0552 



10 -8 



229 -4 



-0984 



7-3 



188-0 



-0545 



8-2 



306 -0 



-0998 









5-6 



306 -0 



-1079 



With very fine tubes and long times of outflow it may be mentioned that the 

 segregation of corpuscles at the bottom of the viscosimeter is liable to cause 

 annoying irregularities, involving frequent repetition after the blood has been 

 well mixed by gently bubbling a slow stream of air through it. From the 

 curves of fig. 9 which, it will be noticed, are practically rectangular 



o 100 200 300 400 sees. 500 



Time of outflow. 



Fig. 9. — Curves showing the Eelation between Outflow Times and Pressures with varying 



amounts of Corpuscles. 



hyperbolas of decreasing curvature, some interesting inferences may be 

 drawn. The outflow times of fig. 9 have been plotted as abscissfe and the 



