6 Trans. Acad. Sci. of St. Louis 



pp. Price 



Broadhead, G. C, Occurrence of bitumen in 



Missouri. 



Gage, Jas. R., Results of investigations of In- 

 dian mounds. 



Riley, Chas. V., Descriptions and natural his- 

 tory of two insects which brave the dangers 



of Sarracenia Variolaris. 



Riley, Chas. V., Descriptions of two new moths. 



Hayes, Richard, Catalogue of earthquakes for 



the years 1872-73. 



Schmidt, Adolf, On the forms and origin of 



the lead and zinc deposits of southwest Missouri. 



Marcou, Jules, On the Terebratula Mormonii. 



Sawyer, Amos, On climatic change in Illinois 



— its cause. 

 No. Ill 140 $2.00 



Schmidt, Adolf, Iron manufacture in Missouri ; 



a general review of the metallurgical districts 



and their resources. 



Riley, Chas. V., Remarks on canker-worms 



and description of a new genus of Phalaenidae. 



Riley, Chas. V., Notes on the natural history 



of the grape Phylloxera. 



Nipher, Francis E., On a new form of lecture 



galvanometer. 



Engelmann, George, Notes on Agave. 



Riley, Chas. V., Notes on the yucca borer, 



Megathymus yuccae (Walk.). 



Broadhead, G. C, The Rocky Mountain locust 



and the season of 1875. 



Broadhead, G. C, The meteor of December 27, 



1875. 



Conant, A. J., Archaeology of Missouri. 



Broadhead, G. C, Age of our Porphyries. 



Engelmann, G., Addition to article on Agave. 



Engelmann, G., Addition to article on Yucca. 



Engelmann, George, About the oaks of the 



United States. 

 No. IV 202 $2.00 



Seyffarth, G., Corrections of the present 



theory of the moon's motions, according to the 



classic eclipses. 



Croswell, C, Mound explorations in southeast- 

 ern Missouri. 



Engelmann, George, The oaks of the United 



States, cont'd. 



Riley, Chas. V., On the larval characters and 



habits of the blister-beetles belonging to the 



genera Macrobasis Lee. and Epicauta Pabr. ; 



with remarks on other species of the family 



Meloidae. 



