International Geological Congress. 465 



The motion was then put and carried. 



The Congress then took up the Devonian. M. Dewalque 

 continued reading that part of the report in regard to the De- 

 vonian (pp. 15, 16), numbers 7, 8 and 9. (a.) Conformably 

 with the only propositions that have been made, the Congress 

 is requested to decide that the three series of this system shall 

 bear the names respectively of the Rhenian, the Eifelian, and 

 the Fammenian. 



(b.) We propose that the Calceola beds should form a part of 

 the Eifelian. 



(c.) Finally we propose to the Congress to decide that the 

 upper limit of the Devonian system is to be placed at the base 

 of the Carboniferous limestone; that is to say, that the system 

 comprises the psamtnites of Condroz, the lower Carboniferous, 

 (Kiltorkan, Marwook ; Pilton) the upper ' Old Eed ' or the Cal- 

 ciferous. sandstone, etc.. 



M. Renevier asked why the Coblentzian was called Rhenian. 

 M. Lapparent explained that Coblentzian was used in a more 

 restricted sense. 



M. Dupont demanded that the upper Devonian begin with 

 the zone of Cyriia Murchisoniana. Dr. Beyrich remarked that 

 few in Grerrnany would agree to this classification. M. Renevier 

 desired to say that M. Gosselet, whom he had expected to see 

 here, regarded the junction between the Calceola beds and the 

 Stringocephalus beds as forming the division between the lower 

 and middle Devonian. M. Dupont remarked that such was 

 the classification of M. Grosselet some time ago. Much had 

 been done since. Dr. von Dechen said the Calceola beds should 

 be in the middle Devonian. 



The third section of the Devonian (in regard to its upper 

 limit) was then read. 



M. Greikie said that an error had crept into this clause and 

 he proposed to strike out all after the word 'Condroz' except 

 the words "the Upper Old Red." M. Renevier objected to 

 sharp lines. We should not go into such details and he asked 

 for the striking out of the. clause on principle. M. Capellini 

 said if it was necessary for the coloration of the map he would 

 retain it, but it did not seem to him to be necessary. M. De- 

 walque thought it was necessary to make sharp distinctions in 

 the map as to the beginning and ending of series, otherwise 

 how was it possible to compare corresponding series in different 

 countries? The limits must be at the same horizon for all 

 regions recorded on the map. 



M. Capellini proposed to adjourn the decision of fixed limits, 

 because it was not necessary to the coloring of the chart. M. 

 Hauchecorne was of M. Dewalque's opinion. Dr. Beyrich 

 thought that we could not separate the Devonian from the 

 Carboniferous at an absolute horizon. 



