tVet or damp clothes^ good conductors of Lightnings 1^1 



h 



The calcareous oxide of Tungsten of which the above is 

 an analysis exists pure and is uncontaminated by any for- 

 eign substances. There however occurs in the same mines 

 a tungstate of lime, mechanically mixed with the native 

 massive oxide of Tungsten, mentioned in the American 

 Journal of Science, Vol. IV. p. 187. The native oxide, 

 in minute veins, is disseminated through the tungstate of 

 fime, and is easily distinguished by its bright orange co- 

 lour, from the calcareous oxide, which colour is yellowish"* 

 gray. When the powder of this mineral is treated with 

 warm ammonia, the native oxide is dissolved, while the 

 tungstate of lime remains unaffected. 



The yellow oxide of tungsten occurs also disseminated in 

 % pulverulent form in cavities and fissures in the ferrugin- 

 ous tungsten ef Mr. Lane's mine* See Vol. IV. p. 52 and 



187 of this Journal. 



Art. XV. — Wet or damp clothes^ good conductors of lightning. 

 Illustrated in the case of John H^lliams Esq, ofConwai/^ 

 Massachusetts. 



[CMnmuaicated for this Journal by the Rct. Edward Hitchcock.] 



Ir the following statement communicated to. me by J. 

 Williams Esq. be thought subservient to the cause of hu- 

 manity or science, it is offered for insertion in the Ameri- 

 can Journal of Science. 



Sept. 2nd, 1316, aboirt sun-set a violent thunder storm 

 Hrose from the north-west j and for more than three hours, 

 the heavens were in an almost constant tilaze. Mr. Wil- 

 liams was standing in the front door of his bouse, in Con- 

 Way, with his face directed southerly j when he was thrown 

 senseless on the floor by a stmke of the lightning. It seems 

 the fluid first entered the roof of his house a few feet above 

 his head, passed down the right hand side of the door, 

 tearing off the ceiling — entered his right shoulder, went 

 iilong his right arm to the hand — then struck his right hip, 

 and running spirally down the back part of his thigh till it 

 fcached the knee, the main part of the charge passed into 

 the left leg and went out through the sole of the shoe while 



VoL,V.....No. I. 16 



