BRAINS AXD BRAIN PRESERVATIVES— HRDLICK A. 



305 



ABSTRACT. 



Preservative. 



3 per cent formalin 



5 per cent formalin 



10 per cent formalin 



!.'> per cent formalin 



Saturated .solution of common .salt with 



.5 per cent formalin 



1,030 sp. gr. common salt solution with 5 



per cent formalin 



1,015 sp. gr. common salt solution with 5 



per cent formalin 



Saturated solution of alum with 5 per 



cent formalin 



One-third saturated solution of alum 



with 5 per cent formalin 



One-fifth saturated solution of alum with 



5 per cent formalin 



One-third .saturated solution of alum 



with common .salt to 1,030 sp, gr. and 10 



per cent formalin 



One-third saturated solution of alum 



with common salt to 1,030 sp. gr. and 5 



per cent formalin 



80 parts of alcohol and 20 parts of 5 per 



cent formalin 



6.5 parts of alcohol and 35 parts of 3 per 



cent formalin 



Sodium acetate, sodium chloride, forma- 

 lin, and alcohol solution 



3 c. c. per gram (weight at periods indicated below). 





Average 



per cent 

 of 



original 

 weight at 



the end 

 of 1 week. 



121. 4 

 117.9 

 115. 

 112. 8 



92.9 



97.9 



101.9 

 77.2 

 99. 4 



101.2 



92.1 



102.4 

 88.5 

 96.3 

 85.9 



Per 

 cent 

 varia- 

 tion. 



5.4 

 3.9 

 4.0 



8.9 



4.9 

 10.3 



(1.2) 

 7.5 

 3.5 

 4.0 



3.6 



6.2 

 (1.1) 

 2.3 



Average 

 per cent 



of 

 original 

 weight at 

 the end of 

 1 month 



121.3 

 116.0 

 113.1 

 111.0 



89. 3 



95.9 



100.3 



71.5 



93.2 



92.1 



81.1 



85.6 

 86.9 

 95.8 

 86.5 



Per 

 cent 

 varia- 

 tion. 



Average 

 per cent 



of 

 original 

 weight at 

 the end of 

 2 months 



6.8 

 5.8 

 .5.3 

 9.8 



6.2 



9.9 



(1.4J 



10.4 



7.1 



7.9 



8.1 

 .5.8 

 (1.2) 

 1.9 



118.2 

 112.8 

 110.3 

 106.6 



86.8 



9.3.6 



9.5.9 



71.0 



88.0 



85.2 



71.2 



76.3 

 87.0 

 96.0 

 86.4 



Per 

 cent 

 varia- 

 tion. 



6.7 

 5.3 

 4.0 

 10.6 



6.5 

 10.8 

 (1.3) 



3.7 

 10.1 



6.6 



11.4 



8.9 

 7.1 

 (1.7) 

 1.9 



Preservative. 



6 c. c. per gram (weight at j 3 c. 

 periods indicated below) . 



Per cent of original 

 weight at the end 

 of— 



c. per gram (weighed 

 every day). 



1 week. 



1 2 



month, months 



35 



Per cent of original 

 weight at the end 

 of— 



1 week. 



1 2 



month, months 



3 per cent formalin 



6 per cent formalin , 



10 per cent formalin 



15 per cent formalin 



Saturated solution of common .salt with 



5 per cent formalin , 



1,030 sp. gr. common salt solution with 5 



per cent formalin 



1,015 sp. gr. common salt solution with 5 



per cent formalin 



Saturated solution of alum with 5 per 



cent formalin 



One-third saturated solution of alum 



with 5 per cent formalin 



One-fifth saturated solution of alum with 



5 per cent formalin 



One-third saturated solution of alum 



with common salt to 1,030 sp. gr. and 10 



per cent formalin 



One-third saturated solution of alum 



with common salt to 1,030 sp. gr. and 5 



per cent formalin 



80 parts of alcohol and 20 parts of 5 per 



cent formalin 



65 parts of alcohol and 35 parts of 3 per 



cent formalin 



Sodium acetate, sodium chloride, forma- 

 lin, and alcohol solution 



Proc. N. M. vol. XXX— 06 



118.9 

 118.9 

 114.0 

 109.1 



93.2 



94.3 



102.0 



82.3 



97.9 



98.4 



93.9 



98.3 

 84.9 

 90.2 

 85.0 



116.9 

 116. 4 

 112. 8 

 102. 6 



90.0 



92.4 



99.6 



73.5 



92.6 



90.9 



83.1 



88.4 

 83.5 



87.9 

 8.5.4 



113.9 

 111.4 

 108.4 

 96.9 



81.7 



89.0 



95.1 



71.5 



88.9 



84.1 



74.0 



84.2 

 82.0 



88.4 

 86.4 



117.6 

 117.8 

 116.2 

 108. 5 



92.1 



97.1 



101.3 

 74.2 

 95.8 



102.0 



89.0 



95.4 

 88.5 

 96.3 

 8.5.3 



115.2 

 116.0 

 112. 2 

 104.7 



94.2 

 98. 25 

 70.3 

 85. 2 

 92.3 



78.6 



86.6 

 87.1 

 96.3 

 87.3 



113.2 

 112.2 

 110.3 

 99.6 



91.2 

 93.4 

 69.3 

 79.2 

 81.3 



73.3 



81.0 

 83.0 

 9.5.3 



20 



C!i 



