BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 

 Vol. 26, pp. 1-128, PLS. 1-7 March 31. 1915 



I'KOCEEDIXGS OF TUK TWENTY-SEVENTH ANN UAL MEP]T- 

 l^G OF THE GEOLOGICAL SOCIETY OF A^FLEICA, HELD 

 AT PHILADELPHrA, PENNSYLVANIA, DECEMBER. 39, 30, 

 AND 31, 1911. 



I^'DMrxi) Oris rioN'KY, Secrelari/ 



CONTENTS 



Page 



Se.s.sion of Tuesday. 1 )c'ct'niher L'i) 4 



Report of the Council H 



Secretary's repoi't 5 



Treasurer's i-ei»ort 8 



lOditors reimit 10 



JOIectioii of .Vnditiii^ Coniuiittee 11 



Election ol' oHicers 11 



lOlectioii of Fellows 12 



.Memoir of Alfred I'h-n(>st Harlow (witli iiililiou'raplix ) : liy Frank I >. 



.Vdams 12 



Memoir of Albert S. Biclimore ; by (Jeorj^e F. Kuuz IS 



Memoir of Horace C. Hovey (with biblioj^raphy ) ; l)y .John ]M. Clarke. 21 

 .Memoir of Newton Horace Wincliell (with biltliotrraphy ) : by Wai'ren 



Upliam 27 



Memoir of .Tosepli Le Conte (witli biblioj^raphy) ; ity Herman L. Fair 



diild 47 



Report of ( 'ommittee on I'lmto.uiaiihs .17 



Ke|»ort of Committe<' on ( Icolo.u'ical Xonieiiciatni-c Ttl 



'j'itles and abstracts of pajiers iiresentcil in ucncral session ami dis- 

 cussions therenii ."•S 



Relation of bacteria to dejiosition of caicinni carbonate [ab- 

 stract j : by Karl F. Kellermau oS 



Coral reefs and reef coi'als of the snntbeasteni riiiled States, 

 their j,'eolo;,'ic history and sii,'nilicance | abstract and discus- 

 sion | ; by Tliomas AVayland Nauf^han •">>> 



Causes producing scratcluMJ. impressed, fi'actiu'cd. and i-eccnicidcd 

 pebbles in ancient cciu^rlcinicraf cs [abstract and discussion |: b,\ 



.Tohn M. Clarke <>0 



Titles and abstrjicts of papers jtrcsenled before tlie First Section and 



discussions thereon 01 



()ri;;in nf the lied Reds of western W.\onnni: |absti-act and dis- 



<'Ussion I : by E. R. Rranson t»l 



.New iioints on the ori;;iu of dolonnles |abslract[; b.\ Francis M. 



\an Tu.\l «■- 



I — Bull. Gkol. Soc. A.m., v..i,. 'jr., i-.M 1 (1) 



