18 rROC'EEDINGS OF THE BOSTON MEETING 



The analyses are all, except C 4, D 4, A 3, cited from volume vi, Geological Survey 

 of Michigan, pages 215 and 26(5, where the original references and descriptions and 

 other pertinent analyses may be found. 



4 and D4 are from the American Geologist, volume xxii (1898), page 87, by 

 T. L. Watson. Bunsen's normal basalt analysis, A 3, is in many textbooks. I cite 

 from Neumayr's Erd-Geschichte. 



Comparable analyses in A and B, C and D have the same number, and though 

 the figures marked with a star are certainly erroneous, the rocks (as the water or 

 loss shows) none too fresh, anil the accuracy of the analyses generally none too 

 high, yet as the corresponding analyses of each set are by the same chemist, and 

 four diflerent chemists represented, 1 think the inferences I have drawn, confirmed 

 as they are by petrography, are fairly safe. Other recent analyses of plutonic 

 rocks of the same family may be found in the Journal of Geology, volume i (1893), 

 page 712, and volume vi (1898), page 387. 



The full paper is printed in volume vi of the reports of the Michigan Geological 

 Survey. 



The next paper vyas entitled : 



DEVELOPMENT OF THE OHIO RIVER 

 BY WILLIAM G. TIGHT 



Remarks were made by I. C. White and G. F. Wright. 

 The next tvyo papers were read by title. 



CLASSIFICATION OF COASTAL FORMS 

 BY F. P GULLIVER 



\_A hslract] 



This paper proposed a scheme for the classifications of the various forms of the 

 coasts according to their origin and stage of development. Two markedly differ- 

 ing clashes of initial forins were pointed out, those following elevation and those 

 following depression of the land. Each class w^as shown to have characteristic 

 forms at various stages of development, and the writer urged others to think of all 

 the forms on the coast or along the shore as in a certain stage of their life historj'. 

 Thus it will be possible to conceive more easily the form from which any given 

 example has come and toward what form it is developing. 



The paper was discassed by W J McGee and others, who emphasized 

 the value of genetic classifications such as had been made in the above 

 paper. 



This paper is published in full in the Proceedings of the American 

 Academy of Arts and Sciences, volume xxxiii, 1898. 



DISSECTION OF THE URAL MOUNTAINS 

 BY F. P. GULLIVER 



The paper is printed in this volume. 



