PUBLICATIONS OF THE GEOLOGICAL SOCIETY OF AMERICA. 



Regular Publications. 



The Society issues a single serial publication entitled Bulletin of the Geolog- 

 ical Society of America. This serial is made up of proceedings and memoirs, the 

 former embracing the records of meetings, with abstracts and short papers, lists of 

 Fellows, etc., and the latter embracing the larger papers accepted for publication. 

 The matter is issued as soon as possible after acceptance, in covered brochures, 

 which are at once distributed to Fellows and exchanges. The brochures are 

 arranged for binding in annual volumes, which arc elaborately indexed. 



The Bulletin is sold to Fellows and the public either in full volumes or in sepa- 

 rate brochures. The volume prices are, to Fellows, a variable amount depending 

 on the cost of publication ; and to libraries and the public, the fixed amounts given 

 below. The brochure [trices for volumes 1 and 2 are given on pages ix-xi of vol- 

 ume 2; the prices for the brochures of volume 3 are givon on pages viii-ix of that 

 volume. 



Volume 1, covering the work of the Society from the organization, in 1888, to the 

 end of L889, comprises 593 | xii pages, L3 plates and 51 cuts. Price to Fellows, 

 $4.50; to libraries, $5.00; to the public, $10.00. 



Volume 2, covering the workt)fthe Society for 1890, comprises 002 -p xiv pages, 

 2.'] plates and O.'i cuts. Price to Fel lows, $4.50; to libraries, $5.00 ; to the public, 

 $10.00. 



Volume 3, covering the work of the Society for 1891, comprises 541 -f- xii pages, 

 17 plates and 72 figures. Price to Fellows, $4.00; to libraries, $5.00; to the public, 

 $10.00. 



Volume 4, covering the work of the Society for 1802, is now complete, and com- 

 prises 458 + xi pages, 10 plates and 55 figures. Price to Fellows, $3.50; to libra- 

 ries, $5.00; to the public, $10.00. The volume is made up of 10 brochures, as 

 follows : 



Brochure. Pages. Plates. Figures. P,iICB T0 Price to 



Proceedings of the Fourth Summer 



Meeting, held at Rochester, August 



15 and It!, 1892. H. L. Fairchild, 



Secretary 1-12 



Finite homogeneous Strain, Flow and 



Rupture of Rocks. G.F.Becker... 13-90 1-22 



The Thickness of the Devonian and 



Silurian Rocks of central New York. 



C. S. Prosser 91-118 



A new Taeniopteroid Fern and its Al- 

 lies. David White 119-132 0-1 



Some Elements of land Sculpture. L. 



E. Hicks 133-146 1-12 



(vii) 



ELLOWS. THE 1'1'lil.lc: 



