392 Scientific Intelligence. {Nov. 
and shot... The Rajah, however, refused to deprive his family of\so 
valuable an hereditary possession, to which the Malays attach the 
miraculous power of curing all kinds of diseases, by means of the 
water in which it is dipped, and with which they imagine that the 
fortune of the family is connected.—See Dr. Leyden’ account of 
Borneo, in the seventh volume of the Transactions of the Batavian 
Society. 
Ill. Voyage of Discovery to Africa. 
The gentlemen appointed by Government to prosecute the disco- 
veries of the late unfortunate Mungo Park have at last sailed from 
England for the coast of Africa. They are Major John Peddie, 
Capt. T. Campbell, and Mr. Cowdery, staff surgeon. They are 
said to be very well qualified for the task which they have under- 
taken. They are to be attended by a. company of Negroes. The 
object of the expedition is to trace the Niger from the place at 
which Mungo Park left it to the sea, and to determine whether or 
not it be the same with the Zayr. 
Iv. Death of Geilen. 
Adolph Ferdinand Gehlen, whose name has occurred repeatedly 
in the Annals, died at Munich last summer ; or perhaps it would be 
more proper to say that he destroyed himself, since he persisted in 
a set of experiments in which he was daily exposed to the fumes of 
arsenic, though warned by his friends of the fatal consequences that 
would ensue. He became first generally known to the chemical 
world in 1803 by the publication of a new monthly chemical work, 
which he entitled, Neues Allgemeines Journal der Chemie (New 
Universal Journal of Chemistry). Of this journal he published six 
volumes, which contain a great deal of valuable and original matter. 
In 1806 he changed the title to Journal fur die Chemie und Physik 
* (Journal of Chemistry and Natural Philosophy). About this time 
he was chosen a Fellow of the Academy of Sciences of Munich, to 
which capital he repaired. Yet he still continued to publish his 
journal at Berlin. But it was infinitely inferior to what it had been, 
consisting chiefly of translations from foreign journals, and of lon 
apers by Ritter, often highly absurd and ridiculous. He continue¢ 
it, however, till 1810, when he stopped: no doubt because the sale 
had diminished so much as not to be equivalent to the expenses of 
the publication. His principal discovery was the mode of preci- 
pitating red oxide of iron by succinate of scda or of ammonia. This 
discovery has been of considerable use in the chemical analysis of 
minerals, 
V.' Confirmation of Mr. Rose’s Discovery of the Alsence of Urea 
from the Urine in Hepatitis: being an Extract of a Letter 
_ from Dr. Henry, of Manchester. 
Soon after the publication of Mr. Rose’s paper, in your number 
for June, a medical friend (Dr. Holme) gave me a specimen of the 
