422 JAMES STUART PLANT 



LITERATURE 



While various observations bearing upon this problem have 

 been made, none have employed exactly our experimental pro- 

 cedure. Various solutions of jDotassium bichromate have been 

 used— Donaldson ('94), Fish ('93), and King ('10)— but a study 

 in the changes in the reaction to Miiller's fluid has not been 

 made. A similar study was carried out by Hrdlicka ('06) in 

 which various formalin preparations were used as fixing reagents. 

 The effect of age upon this reaction has been discussed in a gen- 

 eral way — Donaldson ('94) and King ('10) — but it seems that 

 the extent of its control over the reaction has not been previously 

 stated. 



BIBLIOGRAPHY 



Donaldson, H. H. 1894 Preliminary observations on some changes caused in 

 the nervous tissues by reagents commonly employed to harden them. 

 Jour. Morph., vol. 9. 



1916 A revision of the percentage of water in the brain and in the 

 spinal cord of the albino rat. Jour. Comp. Neur., vol. 27. 



Fish, P. A. 1893 Brain preservation with a resume of some old and new 

 methods. Wilder Quarter-C^nturj^ Book, Ithaca. 



Hrdlicka, A. 1906 Brains and brain preservatives. Proc. U. S. Nat. Mu- 

 seum, vol. 30. 



King, H. D. 1910 The effects of various fixatives on the brain of the albino 

 rat, with an account of a method of preparing this material for a study 

 of the cells in the cortex. Anat. Rec, vol. 4. 



