vi PREFACE. 



helped in various ways : Mr. Thomas Hallam, J.P., Cotton Spinner ; 

 Mr. Charles Timothy Bradbury, J.P., Managing Director of 

 Gartsides of Manchester, Limited ; Mr. Daniel F. Howorth ; Mr. 

 D. H. Wade, Director, Heginbottom Technical School ; Mr. John 

 Green ; Mr. Ira Mar si and ; Mr. J. C. Wilson : and Mr. James 

 Beaumont, of Ashton-under-Lyne ; also to Mr. John E. Sunderland, 

 of Rylands & Sons, Limited, Manchester ; Professor Weiss, Owens 

 College, Manchester; Mr. Thomas Axon, Heaton Norris, Stock- 

 port ; Mr. C E. Flowerdew ; Mr. Reginald Marsland ; and Professor 

 J. Reynolds Green, F.R.S., London. 



In conclusion, I shall be grateful for any suggestions that will 

 enable me to add to the utility of this work. 



34 CAMP STREET, 



ASHTON-UNDER-LYNE, 



March, 1902. 



