Contents and Price List Vols. I-XXIII 5 



pp. Pric* 



Swallow, G. C, Notice of remains of the horse 

 in the altered drift of Kansas. 

 Engelmann, George, The variations in the 

 stage of the Mississippi River at St. Louis. 

 Engelmann, George, A revision of the North 

 American species of the genus Juncus, Mith a 

 description of new or imperfectly known 

 species. 



Parry, C. C, Account of the passage through 

 the Great €anon of the Colorado of the west, 

 etc., 1867. 



Harrison, Edwin, Age of the porphyry hills of 

 southeast Missouri. 



SwalijOW, G. C, Mr. Meek's notes on my pre- 

 liminary report of the geology of Kansas, as 

 edited by Dr. Hayden. 



• WiSLizENUs, A., Yearly report of atmospheric 

 electricity, temperature, and humidity, from ob- 

 servations made at St. Louis, Mo. 



Parry, C. C, On the character of the persistent 

 snow-accumulations in the Rocky Mountains, 

 Lat. 40*^-41° north, and certain features per- 

 taining to the alpine flora. 



VOLUME III 602 $7.00 



No. I 192 2.00 



Engelmann, George, Notes on the genus Yucca. 

 Riley, Charles V., On a new genus in the 

 Lepidopterous family Tineidae, with remarks 

 on the fertilization of Yucca. 

 Walsh, Benj. D., Descriptions of North Ameri- 

 can Hymenoptera. 



• WisLizENUs, A., Atmospheric electricity. 

 Hayes, Richard, Catalogue of earthquakes for 

 1871. 



Riley, Chas. V., Supplementary notes on Pro- 

 nuba yuccasella. 



Gage, Jas. R., On the occurrence of iron ores 

 in Missouri. 



No. II 64 $2.00 



Riley, Chas. V., Hackberry butterflies ; descrip- 

 tion of the early stages of Apatura Lycaon, 

 Fabr. and Apatura Herse, Fabr. ; with remarks 

 on their synonymy. 



Riley, Chas. V., On the oviposition of the yucca 

 moth. 



Engelmann, George, Notes on the genus Yucca. 

 Riley, Chas. V., Description of two new sub- 

 terranean mites. 



Broadhead, G. C, On the well at the insane 

 asylum, St. Louis County. 



