MEETING OF SAVANS AT SPEYER. 



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, with 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 lobatum, — Goldfuss. 



