PREFACE, 
IT is under a feeling of great responsibility that 
the author lays before the profession his views 
on one of the most difficult subjects connected 
with veterinary science. 
The lectures were delivered at the Royal 
Veterinary College, Edinburgh, during the 
summer session of 1874. 
They are for the most part based on the 
teachings and practice of the late Professors 
Dick and Barlow, but have, the author ven- 
tures to hope, a further value in being based 
also on the notes and observations of about 
five hundred cases of horse examination by 
the author himself. This is exclusive of the 
Nextensive experience gained by the author as 
the pupil of one of the busiest practitioners 
in Yorkshire for a period of nearly four years. 
