DISCUSSION. 



Mr. J. F. James: The discovery of fossils in the limestone of Rutland, 

 as noted by Dr. Wolff, is of interest^ inasmuch as it establishes a new locality 

 for Cambrian strata. The lower Cambrian has a great thickness in Wash- 

 ington county, New York, to the southwest, and at Georgia, Vermont, to the 

 north of Rutland ; and while the presence of the fossils mentioned (Kutor- 

 gina and Salterella) is perhaps sufficient to indicate rocks of Cambrian age, 

 it seems rather slender data, in a region where the structure is so compli- 

 cated, to state the exact horizon to which the strata should be referred. As, 

 however, the rocks in both Washington county and in Georgia are of lower 

 Cambrian age, it seems probable that the "Olenelliis quartzite," as it is 

 termed by Dr. W o\ff (sdthou crh Ole)ielliis is not stated to be found in it) is 

 really lower Cambrian. Further information is greatly needed to settle this 

 point, and it is hoped that Dr. Wolff will be able, from future investigations, 

 to furnish the information. 



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