446 Prof. Maskelyne and Dr. Lang's Mineralogical Notes. 



they are confined to the fissures that penetrate the crystalline 

 magma in which the iron particles are enclosed. 



Thus, of Segowlee the Asiatic Society of Calcutta sent to Lon- 

 don a very small complete stone with a minute fracture at one 

 end. That fracture seemed bluer than the large fissured mass of 

 Segowlee, of which pieces had before come to Europe. I obtained 

 Dr. Oldham's assent on behalf of the Society to a section being 

 made of it ; and the result was a surface exactly like in structure 

 and material to the original Segowlee, presenting the same irre- 

 gular mixture of crystalline granules of all sizes interspersed with 

 rather large olivine-like crystals ill defined in their outline, and 

 here and there with spherules remarkable for the illustrations 

 they afford of the fanned and radiated mineral rich in iron span- 

 gles. But, unlike the brown Segowlee stone, it was as free from 

 the iron-stains which give its brown hue to that aerolite, as are 

 the curious stones of Klein- Wenden and Erxleben, with their 

 thin crystalline spangles of iron fixed in their clear, colourless, 

 and transparent crystal setting. 



The specific gravity of Nellore = 3*63. 



14. Dhenagur. 



An aerolite somewhat similar to, but less chondritic than those 

 of Durala and Nellore fell at a place called on the label Kheragur, 

 on March 28, 1860. This aerolite was presented by Major 

 Bouverie, the Governor- General's agent at Bhurtpur, to the 

 Asiatic Society of Bengal, and is stated in their ' Proceedings' for 

 1860, p. 212, to have fallen at a village about 15 miles south of 

 that place. There is also in the same volume a notice in a 

 letter from R. P. Saunders, Esq., Deputy Commissioner at 

 Kangra, in which he describes the Dhurmnala fall, and inci- 

 dentally states that an aerial meteor or waterspout (!) had taken 

 place in the neighbourhood of Bhurtpur, " where an aerolite is 

 said also to have fallen." There is no place of the name of 

 Kheragur to be found on the great Survey Map of India ; but 

 S.W. of Bhurtpur, at some 10 or 12 miles distance, is a village 

 called Dhenagur. I have little doubt that the name Kheragur 

 is a mistaken reading of this name, the D and the n being 

 readily mistaken for iT and r. There is a Kyreegur in Oude west 

 of a little place called Bhurtapur, but it is not likely to be the 

 place, as the Bhurtpur known all over India is that in the dis- 

 trict which takes its name from it. Pending a greater certainty 

 as to the position reaching me from India, I shall call this 

 aerolite Dhenagur, and I hope on a future occasion to give an 

 account of the circumstances attending its fall. 



The specimen in the British Museum was the large half of 



