Scientific Proceedings. 



25 



The viscosity-coefficient, obtained in eight determinations, showed 

 the value 1233.17 (specific gravity, 1.05028), which means that 

 the blood of this animal was only 3.8 times more viscous than 

 distilled water at 37 0 C. The lowest previous value obtained by 

 the author occurred in a dog after three days of hunger. K 

 equalled in this case 11 10.3 (4.2 times more viscous). 



In general, it may be said that the less the viscosity the 

 longer the period required for extravascular coagulation. This 

 was especially well shown in the case just mentioned. Clotting 

 set in after about 1 5 minutes. 



22. " Survival of an animal after removal of both suprarenal 

 capsules, due to a previous grafting of the organ into the 

 kidney/' with demonstrations of sections : FREDERIC C. 

 BUSCH and CHARLES VAN BERGEN. (Presented by S. 

 J. MELTZER.) 



Dr. Meltzer stated that in several instances survival of a part 

 of suprarenal grafts was obtained after transplantation into the 

 kidney of the same animal. 



In one experiment the animal (a rabbit) survived, after appar- 

 ently all other suprarenal tissue, aside from that which was grafted 

 into the kidney, had been removed. In this case, after total 

 removal of the left suprarenal, a part of the gland, including 

 medulla and cortex, was introduced through an incision into the 

 cortex of the left kidney. Eighty-six days later the remaining 

 right suprarenal was removed in toto. The animal survived the 

 operation and was apparently normal for 21 days, at the end of 

 which time it was killed in order to examine the graft. This was 

 found, upon histological examination, to have been replaced in part 

 by connective tissue. The surviving cells apparently belonged to 

 the medullary portion of the suprarenal. The cortex had been 

 replaced by connective tissue. Blood supply was good. 



Microscopic sections showing the successful grafts were 

 exhibited. In this connection, also, Dr. Meltzer showed, under 

 the microscope, a section of Zuckerkandel's organ, the chro- 

 mophilic bodies of which are similar in nature to the chro- 

 mophilic granules of the medullary portion of the suprarenal 

 capsule. 



