This work, which is now passing through the press, is entitled " Tlie 

 Veterinary Pharmacopoeia, Materia Medica, and Therapeutics," and will 

 shordy be published by Messrs. Bailliere, 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 tlie 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 interestuig 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 courage 

 for, our deliberately expressed resolve. Of course literary and scientific 

 workers will recognise the great difficulties encountered in working tlius 

 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 arc 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 witli whicli 

 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 



