Scientific Intelligence, 433 



Vert to that during her delirium. When she became rational 

 again, she would pursue the same conversation in which she 

 had been engaged during the lucid interval, beginning where 

 she had left ofif. To such a degree was this carried, that she 

 would complete an unfinished story or sentence, or even an 

 unfinished word. When her next delirious paroxysm came on, 

 fhe would continue the conversation which she had been pur- 

 suing in her preceding paroxysm ; so that she appeared as a 

 person might be supposed to do, who had two souls, each occa- 

 sionally dormant, and occasionally active, and utterly ignorant 

 of what the other was doing. 



INTELLIGENCE. 



Art. XXIIL 1 . Discovery of American Cinnabar and 

 Native Lead, 



Extract of a letter from Dr. Comstock of Hartford, to the Editor. 



Sir, 



An answer to your inquiry concerning the discovery of sul- 

 phuret of mercury and native lead in this country, I send you 

 the following summary of a letter I received from B. F. Stick- 

 ney, Esq. Indian agent, dated Fort Wayne, Dec. 1, 1818. 



Mr. Stickney states, that the situation of Fort Wayne, and 

 the country surrounding, is a high level, probably about 800 

 feet above the sea. From this place the water-courses divide 

 and take different directions, on the one hand falHng into the 

 Gulf of Mexico, and on the other into the Bay of St. Lawrence. 

 The whole country is of secondary formation, chiefly calca- 

 reous and aluminous. 



Bitumen and sulphur are every where to be found, and as 

 tisual, accompanied by the metals. 



In speaking of the cinnabar, his words are, " I have found 

 a black and garnet-coloured sand, in great abundance on the 



