186 The Microscope. 



possible. Another conclusion is, that granting for the moment 

 that it is possible to identify blood by measurements of the red 

 corpuscles, of which I am by no means satisfied, it is reckless 

 in the last degree, if not criminal, to express an opinion upon 

 the measurment of less than 100 corpuscles. To express an 

 opinion upon the measurement of only 10 corpuscles, as I am 

 informed has been done in this section within the last year or 

 two, to take the most charitable view of the subject, betrays 

 such culpable ignorance of a subject involving such momentous 

 consequences as ought forever to invalidate the testimony of one 

 who should swear so recklessly. In a case involving the issue 

 of life and death it would be better to measure several hundred 

 corpuscles. 



An examination of the unabridged table of measurements, 

 from which the above summary is tabulated, discloses the fur- 

 ther fact, that by selecting the corpuscles, it would be possible 

 for a dishonest observer to make the average much larger or 

 smaller than the above given, without the possibility of de- 

 tection ; a fact, the bearing of which upon the value of expert 

 testimony upon this subject is so obvious as to need no comment. 



It will be seen that I have not attempted to draw any infer- 

 ence as to the cause of the larger average size of the corpuscles 

 first measured. Whether it was due or not to the drugs exhib- 

 ited during the beginning of this work, is an interesting subject 

 of inquiry, which must be reserved for future examination. I 

 expect to continue these investigations, and at some future day 

 will publish the results. 



Marshall D. Ewell, M. D. 



In 'Chicago Legal News." 



POST GRADUATE WORK. 



An official circular from the Western Association of Collegiate Alumnae, says 

 of the paper recently given before that body by the junior editor of this journal: 



"This paper not only gave information about the oppor- 

 tunities for post graduate work in the University of Michigan, 

 but the opening pages presented a broad and complete discus- 

 sion of the advantages to women of such work. 



Mrs. Stowell proved conclusively, by facts and figures with 

 regard to the relative large numbers prepared for the more in- 



