THE MIcROSCOPE. 327 
family, grouped under the heading “ consumption” have been 
recognized and classified ..... Just in like manner it behooves 
us to recognize that we can no longer content ourselves with the 
assertion that a given case is one of “cancer” ..... We must 
see to what special class of malignant growths the case properly 
belongs ’.” 
Since the printing of this paper in 1881, my ideas as to the 
nature of malignant growths have suffered little if any change. 
I regard them as closely allied—if not positively identical—with 
those forms of neoplasm popularly designated as “cancer ” in 
its malignant state, and of such new formations I recognize 
tumors which will return if cut out from the body, either in the 
same place and in the same form, or in another and perhaps 
distant locality and in a different.form. . g., if a schirrous of 
the mammez be “extirpated” by the knife of the surgeon, it 
may possibly return in loco as a schirrous or as an epithelioma of 
the lip, or glioma of the brain. 3 
Having for many years devoted considerable time to micros- 
copy, my experience with neoplasms of a suspicious nature has 
brought me in contact with very many suffering patients. Not- 
withstanding that the majority of these were treated by skillful 
homeopathic practitioners, I can only add that every malignant 
case proved fatal. 
Allopathy has the same record. Witness the late case of the 
Emperor of Germany, as also that of the late General Grant. 
Now to “establish a case of cancer,”—this can only be accom- 
plished by the aid of the microscope, furnished with a first-class 
wide-angled objective, and in the hands of an expert thoroughly 
conversant with the nature of malignant growths as seen through 
“the tube.” 
CYCLOSIS IN VALLISNERIA SPIRALIS. 
PROF. SAMUEL LOCKWOOD, PH. D. 
THINK that to the amateur at least, a hint how to observe the 
circulation in this favorite plant to the best advantage must 
be acceptable. I have never seen it better displayed than when 
under the excellent manipulation of Mr F. W. Devoe of the 
New York Microscopical Society. 
Having selected a bit of a leaf, not too mature, he shaves off 
one side with a sharp knife, although a razor is better. It is 
