xiv. 
This work, which is now passing through the press, is entitled “The 
Veterinary Pharmacopceia, Materia Medica, and Therapeutics,” and will 
shortly be published by Messrs. Baillitre, Tindall, & Cox. 
It will be evident that the large amount of investigation, necessary 
before writing such works as these, is only to be accurately estimated by 
those who have devoted their special attention to similar pursuits. In 
the midst of professional calls, it is a matter of great difficulty to find 
sufficient leisure—not to speak of the question of remuneration—for 
the necessary application. For these reasons, our purpose of bringing to 
completion a work we have had in view, has not yet been accomplished. 
Recently we have been engaged in the study of the malignant tumours of 
men and animals, in the hope of shedding some rays of light on the nature 
and etiology of these insidious and most interesting manifestations of 
disease ; and we hope that our work ‘will, in the future, be not altogether 
in vain, especially as, working together and separately, we have reason 
to hope for more complete knowledge, than that we at present possess. 
Such marked success as we scarcely hoped for has induced 
us to continue more quickly than we otherwise should have felt coneaee 
for, our deliberately expressed resolve. Of course literary and scientific 
workers will recognise the great difficulties encountered in working thus 
rapidly. That we should have been utterly unable to do so, we may 
with all modesty say, had it not been for the fact that much of what we 
have given to the world has existed in the form of practical and written 
knowledge for a considerable period. The treatment recommended in 
this book, as in the others for which we are responsible, is mainly the 
result of the prolonged experience of the lifetime of a man who has done 
very much for the progress of veterinary.science. The numerous pupils of 
the late Mr. D. Gresswell will recognise the painstaking care with which 
he always strived both to alleviate and to prevent the diseases and dis- 
orders of the domesticated animals. The study of science in all its 
forms was to him the chief joy in life, and he has left what we may 
