PREFACE. XI 



own and Mr. Alston's warm thanks to many gentlemen who 

 have contributed their aid to the present revision of the 

 work ; amongst whom they would particularize the follow- 

 ing : Professor Flower, of the Royal College of Surgeons, 

 Prof. Turner, of Edinburgh, Prof. Rolleston, of Oxford, 

 Dr. J. E. Gray, of the British Museum, Dr. Murie, 

 late Prosector to the Zoological Society, Prof. Newton, 

 and Mr. J. W. Clark, of Cambridge, Mr. A. Gr. More, 

 Mr, H. Evans, Mr. Ogilby, and Mr. Southwell, of 

 Norwich. 



