98 BULLETIN OP THE 



Prof. C. G. FoRSHEY, of Louisiana, made a communication 



ON THE ALLUVIAL BASIN OF THE MISSISSIPPI RIVER STYLED THE 



DELTA. 



(_See the Appendix to this Bulletin,') 



67th Meeting. April 11, 1874. 



The President in the Chair. 



At the request of Mr. J. E. Hilgard, Mr. C. E. Dutton, in 

 continuation of his previous communication, gave a synopsis of 

 his views 



ON THE CHEMISTRY OP THE BESSEMER PROCESS. 



Mr. E. FooTE made some remarks 



ON SOME CAUSES THAT PRODUCE RAIN. 



Mr. F. M. Endlich read a paper 



ON TWO BRICKS PROM THE GREAT WALL OP CHINA. 



The same gentleman made a second communication 



ON SPECIMENS OF METEORIC IRON FROM CHIHUAHUA, MEXICO, AND 

 THE STRUCTURE OP METEORITES IN GENERAL. 



In connection with the preceding paper Mr. Joseph Henry 

 made some remarks in reference to the recent observations of 

 Prof. Newton, of Yale College, 



ON METEOR TRAINS, AND THE UPPER ATMOSPHERIC CURRENTS. 



In answer to inquiries of Mr. J. E. Hilgard, Mr. Cleveland 

 Abbe, as Secretary of the Committee appointed to collect obser- 

 vations on the meteor of December 24th, 1873, made a brief 

 statement of the condition of their work. 



In the course of some remarks on the reported earthquake phe- 

 nomena in North Carolina, the desire was expressed that a com- 



