SOUTHERN CALIFORNIA ACADEMY OF SCIENCES. 93 



Soutli Ainorica were larg-ely consequent upon the absence of 

 dry land connection between the two continents. The presence 

 of marine Miocene formations throughout the tropical re.uions 

 of Mexico and Central America prove that the two continents 

 Avere not connected until the Pliocene, or possibly later; and 

 even then, the extensive areas of swamps and marshes would 

 have prevented the mioration of larg-e land animals in that 

 direction. On the ;)ther h;',nd, we find that the Elei)hant 

 and ^lastodon Were distributed over what is now the entire 

 temperate re.oion of North America, from the Pacific to the 

 Atlantic. 



We also find that, unlike the Miocene fauna the Pliocene 

 shows that the animals of that time inhabited both the Eastern 

 and Western slopes of the mountain ranges, causing the fauna 

 of California to resemble that of the "Bad Lands" of Nebraska 

 and other regions. 



Publications R^eceived 



"The Melon Plant-house nnd the Manteca Disease," Timely Hints 

 for Farmers, Xo. 4(i, Agricultural Experimental Station, University of 

 Arizona. 



''Experiment Station Eeeord,'' Xo. 7, A^ol. 14, U. S. Department of 

 Agriculture. 



''How tlie Mangrove Tree Adds New Lands to Florida,'' by O. P. 

 Phillips. Ee])rinted from The Journal of Geography , No. 1, Vol 2. 



Bulletin of the New York Botanical Garden, No. 8, Vol. 2. 



Proceedings of the Nineteenth Annual Convention of the Associa- 

 tion of Official Agricultural Chemists, ' ' Bureau of Chemistry Bulletin, 

 No. 73, U. S. Department of Agriculture. 



' ' Algae of Northwestern America, ' ' with eleven plates, by W. A. 

 Setchell and N. L. Gardner, Botany, \o\. t, .pp. 165, 418, University of 

 California Publications. 



' ' A Stud}^ of Cider Making, ' ' U. S. Department of Agriculture, 

 Bureau of Chemistry, Bulletin No. 71. 



"Experiments in Orchard Culture,'' Maine Agricultural Experi- 

 ment Station, Bulletin No. 89. 



' ' The Water Contents of Creamer_y Butter, ' ' U. S. Department of 

 Agricaltnre, Bureau of Animal Industry, Circular No. 39. 



"Eesistant Vines and Their Hybrids," University of California Ag- 

 ricitltural Exjjeriment Station, Bulletin No. 148. 



"The Chinch Bug in Maine," Maine Agricultural Experiment Sta- 

 tion, Bulletin No. 91. 



