PREFACE. Vll 



The purpose of this book is to give in the smallest pos- 

 sible space the facts which a physician must know, with 

 some of those which it is desirable that he should know, 

 and a little of that which he may learn if his needs or in- 

 clinations lead him to go further. It is acknowledged, 

 however, that, in deference to precedent, this purpose has 

 not been carried to its fullest extent. Much time has been 

 spent on the index, in order to make the contents quickly 

 accessible. It is a source of regret to the writer that the 

 additions which the revision seemed to demand have made 

 the present book a little larger than the first edition. 



BUFFALO, NEW YORK, June, 1901. 



