xxiv INTRODUCTORY 



to the feeding habits and nourishment of the sahiion, 

 as to the records of growth, migrations, and spawn- 

 ing to be read from the study of the scales, as well 

 as inquiries into allied and auxiliary subjects, have 

 greatly added to the data now ready to hand. 



My endeavour in the present volume is to draw 

 together results which we have received during those 

 recent investigations, but which have been set forth 

 in isolation, not set forth at all, or, what is perhaps 

 much the same in result, printed between the blue 

 covers which so successfully conceal a Government's 

 information. 



