viii PREFACE TO THE SECOND EDITION 



alone. He now has corroborative testimony. In this 

 connection, seeing that it is more or less a summary 

 of the arguments both for and against the stimulant 

 treatment, I may point out that I have now included in 

 the Appendix (Part II.) an article on ' The Use and 

 Abuse of Sedatives in the Treatment of the Equine 

 Colics.' 



Regarding the other additions, perhaps the most 

 important is that of Chapter X., on ' Subacute Obstruc- 

 tion of the Pelvic Flexure of the Colon.' This, I hope, 

 is a further step towards the clearer diagnosis of intes- 

 tinal obstructions, and I trust the matter there recorded, 

 together with the diagrams illustrating it, will lead others 

 to a comprehension of these troubles even more exact 

 still. 



To Chapter II., which deals with the surgical anatomy, 

 I have added diagrams which may, perhaps, define more 

 clearly than the words the formation of the so-called 

 cardiac sphincter of the stomach. 



Appended to Chapter VII., that on ' Gastric Tympany,' 

 there is a description and illustration of a new stomach- 

 tube, which shows promise of being of use in the treatment 

 of both gastric tympany and gastric engorgement. 



Of alterations, there is only one of importance. It 

 deals with a change of opinion, which I should be dis- 

 honest in withholding, and will be found fully set out in 

 Part III. of the Appendix. 



In conclusion, I again commend this book to the 

 veterinary practitioner, asking him, above all, to make it 

 but an aid towards the achievement of an end we must 

 all of us have in view — the further elucidation of the 

 troublesome affections with which it deals. 



H. C. R. 



Spalding, 



January, igog. 



