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in these pages, lest, perchance, some student of this interesting 

 group of organisms may have overlooked the fact that the work 

 referred to is one which he certainly cannot afford to be without. 

 The names of the authors and the publisher are themselves 

 sufficient guarantee both of the accuracy of the subject-matter 

 and the technical perfection of the letterpress and plates, and 

 in offering our congratulations on the appearance of such a work 

 we feel we are only echoing the sentiments of all who are in any 

 way interested in the welfare of the study of the Diatomaceae. 



F. P. S. 



Jov.rn. Queketl Microscopical Club, Ser. 2, Vol. X., No. <>3, November 1908. 



