MEETING OF SAVANS AT SPETER. 
503 
Dr. Buchner is now occupied with a monograph on meteors, and is 
anxious to figure all that are known. For this purpose he would feel 
extremely" obliged if any one who possesses specimens would send 
drawings of them to him, to Giessen, vvitli a statement of their weight. 
Drawings of those in the British Museum are already promised. 
Professor Knop gave a very complete account of certain copper ores 
from Africa, describing the various decompositions and changes they 
have undergone, and confirming his conclusions by experiments. This 
led to a considerable discussion, in which it was argued that in some 
places the facts were the very opposite to what the author had stated, 
and it was concluded that in some instances reverse chemical decom- 
positions had occurred, as, for instance, the change of carbonate of lead 
to the sulphuret, and of sulphuret to the carbonate. 
M. Van Beneden described the numerous and excellent fossils now 
being found in excavating for the fortifications at Antwerp, including 
a number of vertebrata. The shells are, on the whole, like those in 
the basin of Bordeaux, and show that the strata are of Miocene age. 
Mr. Grothian exhibited some fossils from the tertiaries and chalk 
near Brunswick. The most remarkable of these were some curious 
Coeloptychium clerminum.— Riimer. 
. Coeloptychium lobatom. — Q-oldfass. 
