This note is contributed to the criticisms, published in the October-November, 1926, number of the Journal of Geology, which have grown out of an earlier article by Mr. George W. Bain. Mr. Bain advanced arguments for the apparent disappearance of over 10,000 feet of sediments, which he attributed to the intrusion of the Sudbury norite. Bain's understanding of the stratigraphy of the district seems to be at fault according to the work of the present writer which was quoted by Bain to support his own views.