XVa BULLETIN OF THE GEOLOGICAL SOCIETY OF AMElRICA 



CORRECTIONS AND INSERTIONS 



All contributors to volume 23 have been invited to send corrections and in- 

 sertions to be made in their papers, and the volume has been scanned with 

 some care by the Editor. The following are such corrections and insertions as 

 are deemed worthy of attention : 



Page 13, line 21 from top ; after Boston, omit lines 21, 22, and 23 and insert The 



firing on the flag at Fort Sumter, April 12, and the 

 subsequent attack of a mob in the streets of Balti- 

 more on the Sixth Massachusetts Regiment on its 

 way to aid in the defense of Washington, 

 *' 14, " 13 from top ; for "Hours of Exercise in the Alps" rmd Semi- 

 scientific Descriptions of Glaciers and Mountain- 

 eering in the Alps. 

 92, " 13 from top ; omit entire line 



95, " 2 from top ; for " shows " read show 



96, " 7 from top ; for " allowed, mentioned " read allow mention 

 98, " 14 from bottom ; for "below" read above 



103, " 6 from top ; for "as well" read as well as 



103, " 18 from bottom ; for "form," read form ; 



107, " 7 from top ; for " combines" read employs 



116, " 3 from top; a/fer " border " 07m« comma 



116, " 16 from bottom ; for "words 'gas' and 'boss' " read word "gas" 



117, " 10 from bottom ; for " morvan " read Morvan 

 123, lines 15, 17, 26, and 29 from top; omit "so" 



Plate 15, title should read "Tlie Ordovician-Silurian Limestone — Dolomite Belt.'* 

 Pages 334, 336, 338, 340, 342, 344, 346 and 348, /or "l. d. " in head-line read d. 

 Page 345, line 14 from bottom, /or "expected" read exported 



" 352, " 5 from top, /or "south corner" read southeast corner 

 " 374, " 18 from top, for Favosites turbinata read Favosites turbitiatiLS 

 " 375, " 18 from top, beginning ivith " although " should read although such 



beds outcrop at the Silurian-Devonian contact at the 

 northern edge of town and some of the wells, etcetera. 

 " 461, " 17 from top, /or " slickensides " read slickensided 

 " 462, " 4 from top, /or " make " rmd makes 



