DAY^ ON CHEMISTRY RELATING TO PHYSIOLOGY^ &C. 59 



that the student of the microscope will find the subjects of 

 his study more specially treated of. The subjects there 

 successively taken up are the digestive fluids^ the blood and its 

 allies^ the fluids connected with generation and development^ 

 the secretions of the mucous membrane and the skin^, the 

 urine, pus, and the solid tissues of the body. To those who 

 wish to make the use of the microscope subservient to the 

 study of physiology, we confidently recommend Dr. Day^s 

 volume as one of the most trustworthy guides in our language. 



