CONTEMPORARIES AND SUCCESSORS OP EOZOON. 141 



of Bavaria, is one of the most active and widely in- 

 formed of European geologists, combining European 



lowledge with an extensive acquaintance with the 



'ger and in some respects more typical areas of the 

 Ider rocks in America, and stratigraphical geology 



ith enthusiastic interest in the microscopic structures 



fossils. He at once and in a most able manner took 

 the question of the application of the discoveries 

 Canada to the rock^ of Bavaria. The spirit in 

 feich he did so may be inferred from the following 



[tract : — 



''The discovery of organic remains in the crystalline 

 limestones of the ancient gneiss of Canada, for which 

 we are indebted to the researches of Sir William 

 Logan and his colleagues, and to the careful micro- 

 scopic investigations of Drs. Dawson and Carpenter, 

 must be regarded as opening a new era in geological 

 science. 



•'This discovery overturns at once the notions 

 hitherto commonly entertained with regard to the 

 origin of the stratified primary limestones, and their 

 accompanying gneissic and quartzose strata, included 

 under the general name of primitive crystalline schists. 

 It shows us that these crystalline stratified rocks, of 

 the so-called primary system, are only a backward 

 prolongation of the chain of fossiliferous strata ; the 

 elements o£ which were deposited as oceanic sediment, 

 like the clay -slates, limestones, and sandstones of the 

 paleozoic formations, and under similar conditions, 

 though at a time far more remote, and more favour- 



