vi TRANSLATOR'S PREFACE. 



from mentioning how much I have always owed to his unfailing 

 brotherly love and sympathy. But words are powerless to express 

 feelings, and I have no right to say more here on this matter; so 

 much I could not omit. 



One word on the unfortunate delay in the appearance of this 

 volume. It is due to various causes, whereof I may mention severe 

 domestic losses, and heavy examination work; while the printers' 

 strike caused still more delay. I trust this will not occur with the 

 next volume, which is now fairly in hand. 



Marcus M. Hartog. 



Tbtnitt College, Cambkidge, 

 September, 1872. 



