46 GEOEGE JOHN EOMANES 1875- 



that are raised by it, I think they will require to be 

 years well spent. 



And this makes me remember that I have to 

 apologise for the inordinate time I have kept your 

 copy of Professor Hackel's essay on Perigenesis. 

 Since you sent it I have scarcely had any time for 

 reading, and as you said there was no hurry about 

 returning it, I have let it stand over till this paper is 

 off my hands. 



Lankester seems to have doubled up Slade in fine 

 style. I suppose the latter has always trusted to his 

 customers not liking to resort to violent methods. 

 His defence in the ' Times ' about the locked slates 

 was unusually weak. ' Once a thief always a thief ' 

 applies, I suppose, to his case ; but it is hard to under- 

 stand how Wallace could not have seen him inverting 

 the table on his head. In this we have another of 

 those perplexing contradictions with which the whole 

 subject appears to be teeming. I do hope next winter 

 to settle for myself the simple issue between Ghost 

 versits Goose. 



Yery sincerely and most respectfully yours, 



Geo. J. EoMANEs. 



To C. Darwin, Esq, 



18 Cornwall Terrace. 



Professor Hackel's paper on the Medusse is called 

 ' Beitrag zur Naturgeschichte der Hydromedusen ' 

 (Leipzig, 1866). Professor Huxley has lent me his 

 copy, but says he wants it returned in a week or 

 two. I ought certainly to have the work by me next 

 summer, so I thought that if you happen to have it 



