1 837.] CAMBRIDGE. 279 



"Feb. 23, 1837. Mr. Darwin v. Mr. Baines, that the com- 

 bination-room measures from the ceiling to the floor more 

 than (x) feet. I Bottle paid same day. 



" N.B. Mr. Darwin may measure at any part of the room he 

 pleases." 



Besides arranging the geological and mineralogical speci- 

 mens, he had his 'Journal of Researches' to work at, which 

 occupied his evenings at Cambridge. He also read a short 

 paper at the Zoological Society,* and another at the Geological 

 Society,! on the recent elevation of the coast of Chili. 



Early in the spring of 1837 (March 6th) he left Cambridge 

 for London, and a week later he was settled in lodgings at 

 36 Great Marlborough Street ; and except for a " short visit to 

 Shrewsbury" in June, he worked on till September, being 

 almost entirely employed on his ' Journal.' He found time, 

 however, for two papers at the Geological Society.^ 



He writes of his work to Fox (March, 1837) : 



" In your last letter you urge me to get ready the book. 

 I am now hard at work and give up everything else for it. 

 Our plan is as follows : Capt. Fitz-Roy writes two volumes 

 out of the materials collected during the last voyage under 

 Capt. King to Tierra del Fuego, and during our circum- 

 navigation. I am to have the third volume, in which I intend 

 giving a kind of journal of a naturalist, not following, how- 

 ever, always the order of time, but rather the order of posi- 

 tion. The habits of animals will occupy a large portion, 

 sketches of the geology, the appearance of the country, and 

 personal details will make the hodge-podge complete. After- 

 wards I shall write an account of the geology in detail, and 



* "Notes upon Rhea Americana," Soc. Proc.' ii. 1838, pp. 542-544; 



' Zool. Soc. Proc.' v. 1837, pp. 35, 36. and " On certain areas of elevation 



t 'Geol. Soc. Proc.' ii. 1838, pp. and subsidence in the Pacific and 



446-449. Indian oceans, as deduced from 



% " A sketch of the deposits con- the study of coral formations," 



taining extinct mammalia in the 'Geol. Soc. Proc.' ii. 1838, pp. 552- 



neighbourhood of the Plata," ' Geol. 554. 



