xxiv Trans. Acad. Sci. of St. Louis. 



April 18, 1910: 



Frank Meskee. — China, and the Great Wall. 



May 2, 1910: 



Charles A. Todd. — The Preservation and Mounting 

 of Wet Preparations for Museums. 



Francis E. Nipher. — The Nature of the Electric Dis- 

 charge. 



(Published in Transactions of The Academy of Science 

 of St. Louis, Vol. XIX, No. 4, 1910.) 



May 16, 1910: 



William Trelease. — The Geographical Distribution 

 of Agave in the West Indies, and its Probable 

 Mode of Introduction. 



June 6, 1910: 



Walter Edward McCourt. — The Unfolding of the 

 Map of the World. 



October 17, 1910: 



William Trelease. — The Smallest of the Century 

 Plants. 



(Published in Popular Science Monthly, December, 1910.) 



J. L. Van Ornttm.— The Effect of the Presence of 

 Vegetable Mold on the Strength of Concrete and 

 Mortar. 



November 21, 1910: 



Julius Hurter. — The Poisonous Snakes of Missouri. 



December 5, 1910: 



Ulrich Harder. — Evolution with Eeference to the 

 Acquisition of the Erect Posture, its Disadvan- 

 tages and the Decline of Certain Faculties in 

 Man. 



December 19, 1910: 



Robert J. Wallace.— The Construction, Equipment 

 and Work of a Modern Observatory. 



