Scientific Intelligence, 307 



I have since found in a marble of the same kind, but from a dif- 

 ferent quarry, and a few miles distant from the first, a quartz 

 almost as fetid as the necronite, and likewise associated with 

 small prisms of titanium. 



" These substances carry with them a degree of interest 

 in another point of view. They seem to invalidate the 

 opinion that the fetid smell of secondary limestone, slate, &:c. 

 is derived from the decomposition of animal matter. As their 

 gangue is decidedly a rock of primitive formation." 



Another new mineral observed by Dr. Hayden. 

 " Exclusive of the interest which the necronite has excited 

 with me and several others, I have besides stumbled upon 

 another substance, if possible still more interesting. 1 dis- 

 covered it in an imperfect state, about 4 years since, but not 

 until recently have I been able to find it perfect, in beautiful 

 garnet coloured cubic crystals \ of an inch square or nearly. 

 These crystals are very liable or subject to decomposition, in 

 which state they present a perfect but spongy cube. Although 

 they resemble the cubic zeolite, yet they have nothing of its 

 character with them besides." 



Remark. 



Dr. Hayden without doubt alludes to the chabasie of the 

 Abbe Haiiy, formerly but inaccurately called the cubic zeolite ; 

 for it is really a rhomboid very nearly approaching a cube — 

 its angles being 93o 48', and 86° 12'. 



5. Preservation of Dead Bodies. 

 From Thenard's Chemistry, vol. iii. Paris ed. p. 713. 



The author declines describing the methods of embalming 

 commonly employed, and proceeds to describe the mode which 

 was for the first time employed by Dr. Chaussier. 



" This process consists in placing the dead body thoroughly 

 emptied and washed, in water kept constantly saturated with 

 corrosive sublimate. This salt gradually combines with the 

 flesh, gives it firmness, renders it imputrescible, and incapable 

 •f being attacked by insects and worms. 



