PREFACE. 



Nevertheless I should be the last to claim that any merit which the designs illus- 

 trated may show is entirely my own. In almost every case throughout my practice, 

 where a scheme prepared has gone further than the draughting board, I have owed 

 much to the interest and advice, the outcome of an intelligent and discriminating enthu- 

 siasm for the work, which have been shown by my Clients. It is only by this sympathetic 

 collaboration that the best results can be obtained. 



I wish also freely to express my indebtedness to those of my Clients who have 

 kindly permitted me to illustrate the work which I have done for them. I also desire 

 to acknowledge the help rendered by my Sons, Messrs. E. Prentice and John W. 

 Mawson, the former of whom executed most of the additional drawings prepared for this 

 edition, and by many of my office staff, past and present, including Messrs. R. Atkinson, 

 I). Cameron, N. and H. Dixon, J. Dyer, A. N. W. Hodgson, R. Mattocks, J. R. Mawson, 

 H. Pierce, J. Shaw and J. B. Walker, each of whom has taken a keen and practical 

 interest in the production of the work. The book also owes much to the illustrations by 

 Messrs. E. A. Chadwick and E. A. Rowe, particularly the coloured plates. 



Lastly I wish to acknowledge the invaluable services rendered by my Secretary and 

 former pupil, Mr. James Crossland, who arranged my MS. for the printer. Without this 

 collective effort, this edition, produced, as it has been, in the intervals of an extensive 

 and growing practice, would have been impossible. 



THOMAS H. MAWSON. 



High Street House, Lancaster. 

 October, 1912. 



IX. 



