CHAPTER VHI. 



A WORD OR TWO ON VOLUMETRIC ANALYSIS. 



The value of the microscope to the medical profes- 

 sion is greatly enhanced by the conjoint use of a little 

 chemistry; in the examination of urinary deposits it 

 will often occur that neither the microscopical nor the 

 chemical analysis per se would be complete or entirely 

 satisfactory, while the combined results of these might 

 lead directly to the information desired. 



Micro-chemical examinations of urines are of the 

 utmost importance to the practitioner ; among the best 

 English works on the subject may be named those of Gold- 

 ing Bird , Beale , Roberts and Harley . The beginner will 

 derive much satisfaction from the work of Dr. Bird, 

 which although written twenty years ago is essentially 

 good at this day. The reader should keep in mind in 

 the perusal of either of the above authors, that micro- 

 scopy has of late years suffered material advancement, 

 hence it is with the superior objectives now at our com- 

 mand, we are able to cross-question some of the plates 

 contained in the above-named books. 



Almost anyone looking over the representations of 

 ** tube-casts " as pictured by Dr. Beale, would natu- 

 rally arrive at the conclusion that there could be no 

 doubt as to the recognition of these objects in practice. 

 It becomes my duty to say, therefore, that in neither 

 of the works referred to, can be found a reliable repre- 



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