TABLE OF CONTENTS. x jii 



VERTEBRATE ZOOLOGY Continued. 



Chronological Palaeontology of the Vertebrates Page 496 



The Dipnoans a Predominant Type of the Palaeozoic Age 496 



Ceratodus in the American Jurassic 497 



An American Ichthyosauroid Form 498 



An American Jurassic Mammal 499 



The Miocene Mammalian Fauna of Oregon 499 



BOTANY. By Professor W. G. Farlow, Boylston Hall, Harvard College, 



Cambridge, Mass 501 



Progress in America 501 



Phanerogams 50 1 



Higher Cryptogams 504 



Thallogens 505 



Lichens 505 



Algae 506 



Vegetable Anatomy and Physiology 507 



Miscellaneous 509 



General 510 



Phanerogams 510 



Anatomy and Morphology 511 



Higher Cryptogams 512 



Thallogens 514 



Diseases of Plants 519 



Bacteria 520 



Vegetable Physiology 522 



Herbaria, Gardens, etc 524 



AGRICULTURE AND RURAL ECONOMY. By Professor W. O. Ax- 



water, Wesleyan University, Middletown, Conn 525 



I. General Characteristics of Recent Progress 525 



Union of Science with Practice in Agriculture 525 



Status and Progress of Agricultural Science in 1878 526 



Agricultural Science in Europe 526 



Agricultural Science in the United States 527 



II. The Atmosphere as Related to Vegetable Production 527 



Agricultural Meteorology 527 



Atmospheric Electricity 528 



Influence of Atmospheric Electricity upon the Nutrition of 



Plants 528 



Influence of Electricity upon Water -evaporation and upon 

 Plant-growth 529 



III. The Soil as Related to Vegetable Production 530 



Physical Properties of the Soil. Agricultural Physics 530 



Relations of the Soil to Heat , 531 



