334 Edward Livingston Youmans. 



ed out the evidences for Darwinism furnished by sun- 

 dry newly found American fossils. His journey was 

 carried out according to the plan outlined in the fol- 

 lowing letter : 



EDINBURGH, June 27, 1876. 



MY DEAR YOUMANS : Your letter of the fourteenth 

 reached me this evening. My lectures in London begin on 

 October 4th, so that I must leave New York not later than 

 September 23d. I suppose a White Star sails on that day. 

 I have laid out my course roughly as follows, on the sup- 

 position that we arrive in New York at the end of the first 

 week in* August (that gives me just seven weeks clear) : 



First week, Marsh's fossils, New Haven. 



Second week, Agassiz, Newport. 



Third week, Fiske, Petersham. 



Fourth week, American Association, Buffalo. 



Fifth week, tour to Nashville, taking Mammoth Cave on 

 the way. 



Sixth week, Baltimore, where I am to give an address, 

 and Philadelphia. 



Seventh week, lectures in New York. THREE ! 



I will take for lecture days September i8th, 2oth, 22d, 

 and be off on the 23d, leaving the whole population of 

 New York on the quay in tears at my departure. 



Now I think this is behaving very properly. I quite 

 agree with you that I may as well give three lectures as 

 two, and the topic shall be the direct evidence of evolu- 

 tion. I cannot bring diagrams, so you must provide me 

 with blackboard space and abundant chalk. That is the 

 only stipulation I have to make; the rest you must arrange 

 at your own sweet will. 



As to publication of the lectures, I would rather leave 

 the point open. Instead of getting the leisure I expected, 

 here I am harassed with another confounded commission 

 in the Scottish universities, which wastes half my time and 



