11 CONTENTS. 



Seyffarth, G. — The Hieroglyphic Tablet of Pompeium, 



grammatically translated and commented on 193 



RjLEY, C. V. — Notes on North American Microgasters, with 



Descriptions of New Species 296 



Riley, C. V. — Descriptions of some New Tortricids (leaf- 

 rollers 316 



NiPHER, F, E. — On Certain Problems in Refraction 325 



Nipher, F. E. — Magnetic Determinations in Missouri, 1S80, 333 



Todd, C. A. — "Reversion of Type" in the Digastric Muscle 



of the Human Being 351 



Pritchett, H. S. — Ephemeris of the Satellites of Mars for 



the opposition of 18S1 353 



Engelmann, G. — The genus Isoetes in North America. . . . 358 



Engler, E. a. — Auroral Phenomena Sept. 12, 1S81 391 



Seyffarth, G. — Planetary Configurations of Cyprian Anti- 



tiquities 395 



Nipher, F. E — On a Property of the Isentropic Curve for a 

 Perfect Gas as drawn upon the Thermodynamic Surface 

 of Pressure, Volume, and Temperature 407 



Seyffarth, G. — The original Egyptian Names of the Plan- 

 ets, according to a Turin Papyrus, and some New Plan- 

 etary Configurations 411 



Leonhard, a. V. — Notes on the Mineralogy of Missouri. . 440 



Nipher, F. E. — Magnetic Survey of Missouri. Fourth An- 

 nual Report, 1S81 453 



Broadhead, G. C. — Carboniferous Rocks of Eastern Kan- 

 sas 48 1 



Leonhard, A. V. — On the Occurrence of Millerite in St. 



Louis 493 



Engelmann, G. — The Mean and Extreme daily Tempera- 

 tures in St. Louis during Forty-seven Years, as calcu- 

 lated from daily Observations 496 



Nipher, F. E. — The Evolution of the American Trotting- 



Horse 509 



Nipher, F. E. — Magnetic Survey of Missouri. Fifth An- 

 nual Report, 1882 516 



