Remarks by the Editor. 



The account of the Coal formation of the Ohio and its confluent 

 rivers, having occupied the greater portion of the present number, 

 many other communications are necessarily postponed. 



The amount of printed pages in this number is less than usual — 

 but including the pages of Wood cuts, the size is larger and the ex- 

 pense much greater than common. 



Our acknowledgments for books, pamphlets, &;c., received, will be 

 annexed to the January number. 



ERRATA. 



P. 22, bot. 1. dele " Walhouding or" and insert " the." — p. 27, 1. 15 fr. top, for 

 " shells," read " shales." — p. 38, 1. 8 fr. bot. for " Monongahela," read " Maxahala." 

 -^p. 40, 1. 15 fr. bot. for " leaves," read " covers " — p. 50, 1. 4 fr. top, for *= Another," 

 read " Descriptions." — p. 71, 1. 6 fr. top. dele "or Walhouding." — p. 102 1. 10 fr. 

 top, for " poles," read " polls." 



Dr. Hildreth does not consider it as quite certain, although highly probable, that 

 the rock which he has called Lias, as identical with that of England ; the opinion, 

 that they are geologically identical, is ably maintained by another gentleman, whose 

 observations will appear in our next number. — Ed. 



Vol. XXVIII. p. Ill, 1. 6fr. top, for " W. W.,* read "F. H."— p. 118, 1. 5 fr. top, 

 for « 10.63," read " 1068 grs."— p. 378, 1. 7, 10, 16, 27, and contents p. 7. 1. 8 fr. top, 

 for " Brown," read " Bronn." 



CONTENTS. 



Art. I. Observations on the bituminous Coal deposits of the 

 valley of the Ohio, and the accompanying rock strata; 

 with notices of the fossil organic remains and the relics 

 of vegetable and animal bodies, illustrated by a geologi- 

 cal map, by numerous drawings of plants and shells, and 

 by views of interesting scenery; by Dr. S. P. Hildreth, 

 of Marietta, Ohio, - -1 



MISCELLANIES. 



1. Halley's Comet, - - , - - - - - 155 



2. Coins and Medals, --.-... 157 



3. List of new publications since the commencement of the 



present year, ..--..- 161 



4. Facts respecting the Meteoric phenomena of Nov. 13th, 



1834, - - - - 168 



