802 THE ETIQUETTE OF VETERINARY AUTHORSHIP. 
in the portable way, as shown in illustration. The micro¬ 
scope is furnished with a first-class slow adjustment, which 
will focus, without lateral motion, under a -|--in. objective ; the 
eyepiece is made to slide in the draw tube, so that an extra 
power eyepiece can be adapted if required; the joints of the 
two legs of the microscope, which form part of the tripod upon 
which the instrument stands, when in use, are made so that 
that they can be tightened to compensate for wear and tear. 
When packed in its case the microscope does not occupy 
much room, but a case of seven inches in length by three in 
breadth and three in depth is too large to be habitually 
carried in the pocket; the instrument, however, is very 
easily carried, and it is so arranged as to be quickly put in 
order for work. 
A second case, shown in Fig. 5, contains polarizing prisms 
and other apparatus, which the student will require as he 
advances in his study of microscopy. But for some time he 
will find enough of really useful work which he can do with 
a plain instrument of simple construction, with two good 
objectives of an inch, and a quarter-inch focal adjustment. 
When he has done all that is capable of being done with 
these aids, he may begin to consider the propriety of indulg¬ 
ing in mechanical refinements, which are very numerous, 
exceedingly ingenious, and terribly expensive, and, finally, 
not often adapted to the requirements of the practical ob¬ 
server, who desires, above all things, simplicity in his instru¬ 
ments. 
THE ETIQUETTE OF VETERINARY 
AUTHORSHIP. 
By G. Fleming, M.R.C.V.S., Royal Engineers. 
From several independent sources, my attention has been 
called at various times lately to the chapter on Shoeing, in 
Professor Williams’ recently published work on ‘ The Prin¬ 
ciples and Practice of Veterinary Surgery,’ and to the 
apparent and what is designated “ the very obvious unfair¬ 
ness” with which the ideas of others are appropriated without 
acknowledgment, or are knowingly ascribed to persons to 
whom they do not really belong. 
It would appear that, in his remarks on Shoeing, Mr. 
Williams repeats substantially, if not almost literally in some 
parts, a portion of what has been written by me on this 
