< . I). Walcottr—Bevuw oj Dr. h\ II'. Ettf* Report, eto. 101 



organic remains have been transported since their first deposi- 

 tion, and, if they have, whence this portion was derived. 

 r. - November, Lfi 



KxiM.vNAiioN of Plate n. 



(Specimens from Gay Head.) 



Fig. 1. SpTienopieris grevitlioides Hr. 

 Fig "<t ambigua Hr. 



Fig. -A. Andromeda Parlatorii Hr. 



Fig. 5. Myrnne boreal is Hr. 



Fig. 6, 7. Liriodtndron simplex Newb. 



Fig. 8. Eucalyptus Gcinitzi Mr. 



Fig. 9. Eucalyptus Gcinitzi, nut. 



Fig. 10. Eucalyptus Gtinitzi, nut with operculum. 



Fig. 11. Eucalyptus Geinitzi, flower? 



Fig. 12. Sapindus cf. Morrisoni Lx. 



Art. XVII. — ^4 Review of Dr. R. W. Ells? 8 Second Report 

 on the Geology of a Portion of the Province of Quebec .•* 

 with Additional Notes on the "Quebec Group"; by 

 Charles D. Walcott. 



To the geologist interested in the problems presented by the 

 study of the Lower Paleozoic rocks any new data bearing on 

 the geology of the area embraced in the eastern townships of 

 Canada is welcome. It is the region in which Sir William E. 

 Logan worked so long and arduously when building up the 

 " Quebec Group ;" also, at a later date, when endeavoring to 

 obtain evidence to sustain his view, that the crystalline rocks 

 were the altered equivalents of the strata referred to the 

 Sillery division of the " Quebec Group." It is the battle 

 ground, w T here Logan and his adherents have been gradually 

 driven from position to position until, now, there is little left 

 to defend of what seemed in 1863 a well supported position. 



The student will find in Dr. Ells's report a careful and de- 

 tailed description of the geology of the area surveyed and a 

 valuable discussion of the perplexing problem of the " Quebec 

 Group." Not a theoretic discussion, but a discussion based on 

 a careful consideration of the work of those who preceded 

 him in the held, and a thorough study of the typical area in 

 which the "Quebec Group" was first established by Sir Wil- 

 liam E. Logan and his assistants. 



The report, taken in connection with that issued in 1887, 

 sums up the work of the resurvey of the region with the ex- 

 ception of certain areas in the vicinity of Lake Memphrema- 



* Geol. and Nat. Hist. Survey Canada, Report for 1887, pt. K, pp. 1-114, 

 PriDted in 1889. 



