462 Recent Literature. [June, 
possess the characteristic passage connecting the mouth with 
the heart. The older pieces described are of the same character 
as the ancient pottery figured by Dr. Hayden. They represent 
the ceramic art of past centuries, when almost the entire territory 
now included in Colorado, Utah, New Mexico and Arizona was 
thickly peopled by a semi-civilized race who were proficient in 
many of the useful arts and surpassed all of the other North 
American peoples in the art of making pottery. 
:0: 
RECENT LITERATURE. 
determining the species growing spontaneously in North America 
ed 
1 For article on the ancient Pueblo pottery by the author of this paper, S€€ AMER 
ICAN NATURALIST for August, 1876, i a 
? Our Native Ferns and how to study them, with Synoptical Descriptions of 
North American species. By Lucien M. UNpERWoop. 
