470 NATURALIST IN CALIFORNIA. 



gration of enterprising and inclnstrious people, in snfficient 

 numbers so as to exercise a controlling!: influence, would in a 

 few years effect a great change for the better, and place the 

 State in the line of progress. The average Floridian of 

 to-day understands only one thing, and that is "how not to 

 do it." Emigration should be by colonies, and should in- 

 clude some mechanics, and be Avell provided with all neces- 

 sary agricultural and mechanical implements and material, 

 in order to be successful, and great care should be exercised 

 in the selection of a location. 



The trip to Florida, of Avhich these "Rambles" afford a 

 mere outline, was not devoid of scientific interest, and the 

 results will be made known at some future time, either iu 

 the Naturalist or some other appropriate publication. 



THE NATURALIST IN CALIFORNIA. 



BY J. G. COOPER, M. D. 



NO. II. 



The Colorado Valleij in ivinter. — I arrived at Fort Mo- 

 jave, after a journey of sixteen clays from Los Angeles,* 

 on December 19th, 18G0. This post is situated close to 

 latitude 35°, where the boundary line of California strikes 

 the river, and although on the Arizonian side, has, probably, 

 no species of animals not also living on the west bank of 

 the river, unless Lejjus callotis be an exception. This, the 

 Texan hare, I found common there, while L. Californicus 

 is the prevalent, if not the only large species westward. 

 The valley of the Colorado at this post is, probably, ten 

 miles in width, and formed of a succession of gravell}'' ter- 

 races, or mesas, with a narrow sandy bottom intervening, 



*Not Angelos, as printed before. Spanish, not Italian. 



