TWENTY-FIFTH ANNUAL MEETING. 



75 



ished, some of this imprisoned air escapes, and the greater the fall of the barometer 

 the greater the force with which the air is expelled. My friend, Mr. Smith, utilized 

 this air current to blow a whistle, which could be heard all over the town, warning 

 the inhabitants of a possible storm. With a rising barometer, caused by an increase 

 in the pressure of the air, air will be forced back into the subterranean reservoir. 

 Mr. Smith tells me that when the air is going into the well, the water recedes a cer- 

 tain amount, and that when the air is blowing out, it can be heard bubbling through 

 the water. 



ADDITIONAL NOTE ON THE BEENHAM METEORITE. 



BT BOBEBT HAY. 



About the end of 1891, the finds of the meteoric fall in Kiowa county were ex- 

 tended nearly a mile east of the former ones, and most of them are of a new type. 

 Several groups were found, each in an area of several square yards, and having sev- 

 eral hundred individuals. The aggregate number was about 3,000. Some of them 



Fig. 14. Polished Section of Brenham Meteohite; a, cavities containing ollvene; 6, Widman- 

 stattian figures on polished surface. 



seemed to be the decomposed parts of a larger mass, but the bulk of them were evi- 

 dently separate meteorites. A few were about a pound in weight; others were from 

 six or seven ounces down"to the size of a pea. All were more or less oxidized; some 

 had lost all their metallic structure, but some, even of the very smallest, had the true 

 pallasite structure. A specimen (exhibited to the Academy) had been pronounced 

 by Professor Foote, of Philadelphia, to be almost identical with the original meteor- 

 ite of Pallas, which gives the name to this variety. There was one mass of nearly 

 80 pounds. There" seem to have been no more finds, though the search was active. 



NOTE ON THE OCCUEEENCE OF OEANITE IN A DEEP BOEINO IN 

 EASTEEN KANSAS. 



BY EOEEET HAY, F. G. S. A. 



Four borings (one reaching 1,000 feet in depth) at Fort Scott have passed through 

 the coal measures and subcarboniferous rocks at that place. The deep boring at 

 Pittsburg (1,200 feet) is said by Mr. St. John to reach silurian rocks. The boring 

 at Leavenworth (1,800 feet) is also said to have its bottom in siluria. Neither the 

 well seven miles east of Wichita (1,943 feet) nor the boring at Anthony (2,300 feet) 



