Miscellaneous Intelligence. 429 



On the Languages of the Aborigines of the Southwest ; by S. S. 

 Haldeman. 



On the Mounds of the Southwest ; by Dr. M. W. Dickerson. 



On the general results of Investigations in the Paleontology of the 

 lower strata of New York ; by James Hall. 



On the Depth and Saltness of the Ocean ; by Com. C. Wilkes, U.S.N. 



On Heat ; by Prof. Henry. 



On the Taconic System; by Prof. Adams. 



Report on the Taconic System ; by Prof. L. Vanuxem. 



On the Phenomena of Drift and Glacial action in New England ; by 

 Mr. Desor. 



On the Drift of New England and the River St. Lawrence ; by Prof. 

 H.D.Rogers. 



September 25///, Saturday morning. — Final Session. 



On the Incrustations of Steam Boilers ; by Prof. W. R. Johnson. 



On the Structure of the Holothuridae ; by Count Pourtales. 



On the Distribution of organic matter in forest and fruit trees ; by 

 Prof. E. Emmons. 



Report on Trilobites, Crinoidea, &c, of New York ; by J. Hall. 



On the Organization and objects of the Smithsonian Institution ; by 

 Prof. Jos. Henry. 



The Association adjourned to meet in Philadelphia in September, 1848. 



Abstracts of the papers read and remarks made at the Association 

 will be hereafter given in this Journal as far as they may be sent in by 

 their authors. 



2. Iowa Meteorite, (from a letter, from Joshua Barney, U. S. Agent, 

 Dubuque, to J. J. Abert, Col. Topographical Bureau, Washington.) 

 —The accompanying fragment of an aerolite fell at 3 o'clock in the 

 afternoon of the 25th day of February, 1847, within seventy-five yards 

 of the house of Daniel Rogers, nine miles due south of Marion, Linn 

 Co., Iowa. The ground was covered with snow at the time it fell. 

 Mr. Rogers heard a loud explosion in the air, and immediately ran to 

 his door. He heard the stone, of which this is a piece, and several 

 others, whiz through the air, and strike the ground, and saw the snow 

 and dirt fly where this stone struck. The weight of the stone before it 

 was broken, was forty-two pounds. , 



It is said that three more of the stones have been found, all of which 

 are precisely similar in appearance, and nearly of the same weight of 

 this — as it appeared before broken. 



The explosion was heard distinctly by one of the surveyors who was 

 engaged on the survey of the public lands, forty m.Ies distant from Mr. 



ToxE.^The piece referred to was sent to Co!. Abert, Washington. 



It weighs two lbs. eleven ozs. 



3. Supernumerary Rainbows; by John Brocklesby, (in a letter to 

 the editors, dated Hartford, Ct., Aug. 20 1847 )-On ^ening of 

 the fifth of August of the present year, I beheld just at sun-down, a 

 beautiful rainbow attended by the usual secondary, and ™? S WF™*£ 

 tary arcs. The primary bow formed, of course, a complete semicircle, 

 «Ji. to. wer/remarLbly vivid. Whhin .hi, append ,»o .uper- 

 numerary arcs, the three spectra being m contact with each other, 



#k i . ., ii __*__*. _r *V»«. «i*.marxf Knur. 



primary 



