New Haven, January 8, 1879. 

 Prof. N. H. Winchell: 



Dear Sir: I have examined the chapter by Mr. Herrick, which you placed in 

 my hands, and think it a valuable contribution to science. It will make a very 

 appropriate addition, it appears to me, to the Minnesota State Report, because 

 of its illustrating with well-drawn figfures and good descriptions the life of the 

 fresh water of the State. The species are among the most interesting of the 

 minuter animals of the waters, and have a wide distribution over the globe. 

 Yours truly, 



JAMES D. DANA. 



Minneapolis, Minn., January 14, 1879. 



Gen. H. H. Sibleij, President of the Board of Begents: 



I herewith communicate to the Regents an illustrated memoir on the micro- 

 scopic crustaceans of fresh waters of Minnesota, as a contribution on the Natural 

 History of the State, in accordance with law. This valuable paper, by Mr. C. L. 

 Herrick, my laboratory assistant, has cost the Survey nothing more than the use 

 of its rooms and apparatus, and has been submitted to the approval of Prof. J. 

 D, Dana of New Haven, who indorses it as a valuable contribution to science^ 

 and recommends its publication. 



Very respectfully, 



N. H. WINCHELL. 



