160 Bibliography. 



Proceedings Boston Soc. Nat. History. NOVEMBER, 1848. p. 81. Closing 

 ■of straits on east end of Long Island Sound, and a change to fresh water ponds with 

 fresh water animals ; Dr. Cabot.— \\ 83. Shells of the U. S. Exploring Expedition 

 1 6 species of Littorina, i of Stilifer, 1 of Solarium) ; A. A. Gould.— DECEMBER, p. 

 5. On the ovarian egg; Desor. — p. 87. On the muscular arrangement in Catosto- 

 mus; Mr. At/res.— p. 89. Shells of the U. S. Exploring Expedition (3 of Turbo, 8 

 of Trochus); A. A. Gould. On fresh water in Dune Sands and Sand Spits; E. C. 

 Cabot.— p. 96. On Arkansite, Schorlomite and Ozarkite of Shepard ; /. D. Whitney. 

 — JANUARY, 1849. p. W. On certain dendritic delineations; Mr. T<schcmaeher.— 

 p. 100. On Chloritoid and Masooite ; /. I). Whitney.— p. 102. On the black Oxyd of 

 Copper of Copper Harbor, Lake Superior; J. I). Whitney.— p. 103. Co fresh water 

 in dune sands ; E. C. Cabot and Mr. Ayres.—p. 108. Shells of the U. S. Exploring 

 Expedition (8 species of Trochus); A. A. Gould.— p. 108. On the distribution of 

 animal life about the shoals of Nantucket; Desor.— FEBRUARY, p. 111. Geo- 

 logical position of the Mastodon giganteus. 



Proceedings of the American Phil. Soc. Philad. — Vol. v, No. 42. Jan., March, 

 1849. — p. 51. Markings by Telegraphic Clock; John Lock'.— p. 54. On the U. 8. 

 Coast Survey. — p. 74. Telegraphic Astronomical Clock, and velocity of galvanic 

 wave (see this volume, page 142). 



Annales des Sciences Naturelles, Paris, JULY, 1848. — On Annelida (family 

 " Hermelliens") ; A. de Qnatrefages. — New Paguri; Milne Edward*. — Review of the 

 genus Cinchona; H. A. Weddell. — On Anatomic Phyllotaxy or Researches on the 

 Organic causes of the different distributions of leaves ; Th. Lestiboudois. — AUGUST. 

 On Corals; M. Edwards and Jules Haime. — On the hours of waking and singing of 

 some birds during the months of May and June, 1846; D. de la Malle. — Anatomic 

 Phyllotaxy, continued ; Th. Lestiboudois. New exotic cellular plants ; C. Montague. 

 — SEPTEMBER. On the Gasteropoda Phlebenterata ; A. de Qnatrefages.— On 

 Coleoptera of the Genus Eurhinus (Curculionidse) ; E. Blanchard. — Sur le non- 

 vomi>M*ment du Cheval; M. Flour* us. — Embryogeny of the Annelida; A. de Qua- 

 trefages. — New exotic Cellular plants, continued; C. Montagne. — Anatomical Phyl- 

 lotaxy, continued; Th. Lestiboudois. — On the Family Salvador* »; J. E. Plan- 

 chon. — OCTOBER. Embryogeny of the Annelida, continued; A. de Q u at refuges.- 

 Vertebrata of Algiers, viewed in relation to zoological geography and domestic** 

 tion; P. Gervuis. — On Corals; M. Edwards and Jules Haime, (4th mem. Mono- 

 graphic des Astrscidos). — Changes in the flora of Central Europe during the tertiary 

 period; V. Raul in. — On the Embryos which have been described as Pnlycotyledo- 

 nous; M. Ihtckartre. — On the Ovula of the Euphrasia officinalis; G. Dickie.— On 

 the UlmaceaB as a tribe of the Urticea3 ; J. E\ Pumchon, 



Appendix. — At a late hour we have received the following letter 

 from Mr. Isaac Lea, (dated Philadelphia, June 17,) on footprints in 

 Pennsylvania in rocks below the coal ; a farther notice is necessarily 

 deferred to our next number. 



"I am sure it will greatly interest you to learn that it has been my 

 good fortune to have discovered " fossil footmarks" of a reptilian 

 quadruped in the series below any heretofore observed. In a late visit 

 to the southern coal field of Pennsylvania, while making some geolog- 

 ical investigations, I found six distinct double impressions in regular 

 progression, in the old red sandstone. These were accompanied by 

 numerous u ripple marks" and u pits of rain drops" over the whole ex- 

 posed surface of the rock. The lowest heretofore observed I believe 

 are of the Chirolherium, described by Dr. King in the coal formation, 

 near Greensburg, Pa., and those mentioned by Dr. Logan, in the same 

 formation of Nova Scotia. 



"The name I have proposed for this reptile is Sauropus primavus. 



