A. W. Wright — Oases contained in Meteorites. 257 



Fourth, the great Texas meteorite in the cabinet of Yale 

 College, described by Professor C. U. Shepard, this Journal, 

 I, xvi, 216, also, with an analysis, by Professors B. Silliman, 

 and T. Sterry Hunt, this Journal II, ii, 370. It contains 

 Fe, 90-91; Ni, 8-46; residue containing carbon, 0-50. Sp. gr. 



Fifth, that from Dickson Co., Tennessee, described by Pro- 

 fessor J. L. Smith, this Journal, III, x, 349, and examined at 



lined Fe, 91-15 ; Ni, 8-01 ; Co, 0-72 ; 

 bp. gr. 7-717. 

 following table gives the results obtained, the numbers 



0-06.'^'^Sp.^gr. 7-717 



Thefollowi 

 expressing parts in one^ hundred. The numbers in the third 

 ;ive the percentage of each gas in the total 

 They are not the simple averages of the 



each case give the percentage of each gas in the total 



~' , t the simple average 



umbers above them, but the means reduced according to the 



volumes in each case. The totals in the last column are the 

 sums of the volumes given off at the different temperatures. 



Xame. Temperature. CO^. CO. H. N. Volumes. 



Tazewell Co., 500°, 18-34 38-45 41-61 1-70 1-87 



Red heat, 7-76 45-75 44-76 _1^ 1-30 



Total, 14-40 41-23 42-66 1-71 3-17 



Shingle Springs, 500°, 19-98 13-52 60-92 5-58 0-65 



Red heat, Ji'lO 3 0-39 84-40 JrU 0-32 



Total, 13-64 12-47 68-81 5-08 0-97 



Arva, 500°, 18-20 38*72 40-62 2-46 8-89 



Red heat, _11^ 74-59 12-84 1-32 ^;24 



Total, ~12-56 67-71 18-19 1-54 47-13 



Texas, 500°, 9-76 8-43 81-81 I'lO 



Red heat, 2-18 48-58 49-24 .-- _^}^ 



Total, 8-59 14-62 76-79 129 



Dickson Co., Total, 13-30 15-30 71-40 2*2 



The small quantity of the iron available in the examination 

 of the Dickson Co. meteorite rendered it necessary to be con- 

 tent with a single heating to redness. The iron was in the 

 form of coarse chips which were cut by a planing tool. The 

 same was true of the Shingle Springs iron, and this accounts in 

 part for the smaller volume of gases obtained in these two 

 cases. 



We may add to this list the Lenarto iron examined by Pro- 

 fessor Graham,* and the meteorite of Augusta Co., Virginia, 

 the gases from which were analyzed by Professor J. W. Mallet. f 

 The former vielded CO, 4-46 ; H, 86-68 ; N, 9-86, the whole 

 amount of gas being 2-85 times the volume of the iron. The 



