378 LACUSTRIAN SETTLEMENTS. 



civilization in Switzerland, from the age of stone to the Roman epoch, without 

 an indication of violent social convulsions or industrial revolutions, suddenly 

 superinduced by external and intrusive influences. It is doubtless picturesque 

 to burn periodically, as M. Troyon does, all the lacustrian cities and to massa- 

 cre their population. But it is more rational to recognize, as Laplace did at 

 the close of his long and brilliant career, that what we know is little, Avhile 

 what we do not Imow is immense ! 



A. MORLOT. 



P. S. — The seventeenth plate of Dr. Keller is not alluded to in the text of 

 the report ; it contains plans of the lakes of Neuchatel, Bieune, Morat and 

 Sempach, with an indication, according to the researches of Colonel Schwab, 

 of all the lacustrian stations discovered, distinguishing them as respectively 

 dating from the age of stone, of bronze, of iron, or finally from the Roman 

 epoch, for there are a few where Roman objects have been found. Professor 

 Vogt has published a work on man, Vorlesungun ncher den Menschcn, in which 

 lie severly criticises certain parts of M. Troyon's " Jjacustrian Habitations," 

 upon which Dr. Keller had not animadverted; and the central organ of German 

 archaeology, published at Nurnberg, Anzciger fur hunde dec deutschen vorzeit, 

 equally takes ground against M. Troyou's book. (See Beilage, No. 10, Octo- 

 ber, 18G3, page 373.) 



