4 12 



THE POPULAR SCIENCE MONTHLY. 



The points of agreement between Prof. 

 Kendall and my husband, and the proofs 

 more recently found by Prof. Kendall in 

 northwest England (a part of the country 

 with which he is thoroughly familiar) of the 

 correctness of my husband's views with re- 

 gard to the origin of the interbedded marine 

 and glacial deposits of Lancashire and Chesh- 

 ire, will appear in full in the first appendix 

 of the memoir on my husband's observations 

 in Great Britain, which is now in the hands 

 of the printer. I am, with respect, 



Faithfully yours, JULIA F. LEWIS. 



The following letter, inclosed in Mrs. 

 Lewis's letter, was copied by her from the 

 work on The Terminal Moraine in Pennsyl- 

 vania, by H. Carvill Lewis, introduction, 

 p.li. 



(Letter of TransmittaL) 

 PROF. J. P. LESLEY, State Geologist. 



DEAR SIR : In transmitting to you the fol- 

 lowing notes on the terminal moraine, I de- 

 sire to express my thanks to the Second Geo- 

 logical Survey, which has afforded me the 

 opportunity to undertake an exploration 



which to me has been of the greatest in- 

 terest. 



I desire also to express my thanks to 

 those citizens and railroad companies which 

 have rendered assistance in the prosecution 

 of my field work. Especially I am indebted 

 to my friend Prof. George Frederick Wright, 

 of Oberlin, Ohio, who for six weeks about 

 one third of the time employed in field work 

 in 1881 gave me valuable assistance.* 

 While we were together over a great part of 

 the field, portions of the moraine in central 

 Lycoming and southern Venango Counties 

 were traced by him alone, and his experience 

 in the glacial phenomena of New England 

 has been of great value in correlating similar 

 deposits in Pennsylvania. 



Hoping the inclosed report will meet with 

 your approval, 



I remain, very respectfully yours, 



(Signed) H. CARVILL LEWIS. 



GERMAN-TOWN, October 15, 1882. 



The other letter referred to by Mrs. 

 Lewis is a letter from her published by Prof. 

 Wright, to whom it was written, in Science 

 of May 27, 1892. 



EDITOR'S TABLE. 



THE ATTACK ON PROF. WRIGHT. 

 "TTTE publish in this number an ar- 

 VV tide by Major J. W. Powell, Di- 

 rector of the Geological Survey of the 

 United States, in which much interest- 

 ing information is given as to the prob- 

 lems, or some of them, which the Sur- 

 vey has taken in hand to solve, and as 

 to the methods of investigation which 

 have been employed. Major Powell's 

 primary object is, however, to clear the 

 Survey of the charge of having made a 

 concerted and most bitter attack upon 

 Prof. G. F. Wright's recently published 

 book on Man and the Glacial Period, 

 and in this respect we are compelled to 

 say that we think his article a failure. 

 We accept without the slightest reser- 

 vation his disclaimer of any personal 

 responsibility in the matter ; but with 

 the evidence before us we find it impos- 

 sible to believe that a number of indi- 

 viduals, directly or indirectly connected 

 with the Survey, did not, in a concerted 



manner, set themselves to attack Prof. 

 Wright's book, and that in a spirit of 

 personal hostility and spite far more 

 than of zeal for scientific accuracy. Con- 

 sidering the nature of the language in- 

 dulged in by Mr. W J McGee in regard 

 not only to Prof. Wright's hook, hut to 

 Prof. Wright himself, we think the di- 

 rector of the Survey might have spared 

 a few words in which to express his per- 

 sonal disapprobation of it ; but we look 

 in vain in his article for anything ot the 

 kind. He admits that upon the publica- 

 tion of the work in question "his (Prof. 

 Wright's) fellow-workers (on the survey) 

 criticised the book in various scientific 

 periodicals and sometimes spoke very dis- 

 paragingly of it, as being unworthy of ac- 

 ceptance ; " but he does not say that so 

 prominent a member of the Survey as Mr. 

 McGee penned and published an article 



* I. e., in tracing the terminal moraine across 

 Pennsylvania. J. F. LEWIS. 



