LIFE OF JAMES DWIGHT DANA 



with his natural selfishness and vicious properties ? 

 Please drop me a line by return mail, as I have an allu- 

 sion to the subject in a brief notice of Huxley in the 

 Journal of Science. 



" When shall we have, for the Journal, your first article 

 on Classification ? The debasing association of Man with 

 the Quadrumana, which so many zoologists are now ad- 

 mitting, calls for immediate action on the part of those 

 who know what is truth ; and I want very much to have 

 you speak out: then the interests of science at large 

 require your thoughts." 



DANA TO GUYOT 



' NEW HAVEN, Sept. 29, 1863. 



" I was very glad to hear once more from you, but 

 sorry to learn that impaired health had kept you silent. 

 I supposed that you were probably away on your sum- 

 mer tour of exploration. I do not wonder at your break- 

 down ; for you were doing the work of three persons last 

 winter. But it will not do for me to lecture you on the 

 subject of health. This you would repeat after me em- 

 phatically if you knew what I have been at the past two 

 or three months and what done ; that I have thirty-seven 

 pages in type of my own in the next number of the 

 Journal pages that have cost me a vast deal of thought. 

 But I could not help it. My head would think and work 

 over the developing ideas, and I saw rest ahead only in 

 giving it play until the mouse was brought forth. 



4 The subject is Classification of Animals as based on 

 Cephalization. I was afraid that you would think me 

 encroaching on a topic we had worked on together. But 

 this cephalization kept working out new and unexpected 

 results, and I thought my true course was to publish 

 them in detail and then you would have them to adjust 

 into your more ideal system. The whole of the article 

 has been evolved since summer began, except what ap- 

 pears in my former articles. I will send you a copy as 

 soon as it is all struck off. I lay out at length the general 

 laws bearing on classification, with full explanations, and 

 then give the classes, orders, and some of the tribes of 

 the animal kingdom, as they appear to be in nature, in 

 the light of the principle illustrated, 



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