. Mai don, Mass., July 28,1902. 



Dear Dr. Kennedy, 



Miss Tilden's set is a thing to. be- reckoned with;probably half 

 the species are wrongly named, but there they are, they have been pub. 11. shed, and 

 all we can do is,whonover we are writing anything about algae, to give the cor- 

 rect name for any species that we refer to, that she has issued under some other 

 name. Sometimes it is as if wo were speaking of Red Clover, and should have to 

 give as a synonym. 



Pinus Strobus,Tilden,I'3o.35I,not Linn. 



So that the work is of use to me, and I am exceedingly obliged to you .But 

 Lord help the poor beginner in algae who undertakes to determine by it. 



My Maine vacation proved very rich in results to me. I collected at four place 

 during the two wooks;Cutler,Machiasport, Jonesport and Haroswoll,and I only 

 wish I OQ'Uld have spent the whole two weoka at each and every one of the four 

 places. 



I enclose receipt for the remittance, with thanks. 



Very Truly, 



