APPENDIX. 445 



er, Celestial Dynamics, in Correlation and Conservation of Forces, p. 

 311 ; Voyage en Scandinavie et au Spitzberg de la corvette la Recherche, 

 Ge'ographie Physique, t. ii., p. 279 ; Annales de Chimie et de Physique, 3 e 

 Serie, t. xxiv., p. 220, 1848 ; Comptes Rendus, t. lxi., p. 83G. 



Note XI., page 368. 

 The condensed statement in the text conveys a wrong impression. 

 There are two cones at the mouth of the Tiniere — a lower, or newer, and 

 an upper, or older one. Morlot calculated the lower to be from 7190 to 

 11,000 years old, and the age of both he estimated at 96,000 to 143,000 

 years. Andrews calculates the age of the lower to be from 4265 to 4876 

 years. He makes the antiquity of the upper greatly less than Morlot, 

 though he does not find the data for a numerical statement. Human re- 

 mains are only known in the lower cone ; the age of the upper is com- 

 monly supposed to measure the duration of post-tertiary time, though not 

 unlikely it reaches back into tertiary time. On this subject the reader 

 may readily refer to Smithsonian Report, 1860, p. 340 ; lb., 1862, p. 310 ; 

 Amer. Jour. Sci. [2], vol. xlv., p. 187. 



Note XII., page 179, fig. 71. 

 In adopting this illustration from the pages of a popular French writer, 

 it might have been better to have adapted the view of the Ichthyosaur to 

 our present positive knowledge of its organization, by omitting the water- 

 spouts. Though this reptile possessed well-established cetacean affinities, 

 we are not certain of its being so much of a whale as the figure indicates. 



Note XIH., page 204. 



The first restorer of the Zeuglodon was Mr. S. B. Buckley, now of Aus- 

 tin, Texas, and formerly geologist to that state. He discovered the first 

 nearly complete skeleton upon the plantation of Judge Creagh, in Macon 

 County, Ala., and exhumed it in January and February, 1841. He made 

 a restoration of it on the spot. Its length was seventy feet. Accounts of 

 these discoveries were published in the Amer. Jour. Sci., April, 1843, and 

 July, 1846. Fifty feet of another vertebral column were also discovered, 

 but left on the premises of Judge Creagh. These vertebra? were subse- 

 quently found by Dr. Koch, who made numerous additions, and produced 

 semi-factitious Hydrarchos, to which reference is made in the text, and 

 which, after exhibition in New York, was taken to Berlin and sold. Buck- 

 ley's original specimen was sold for $200 to Dr. E. Emmons, who pubhshed 

 some account of it in the Quar. Jour. Agr. and Sci., and then sold it for $900 

 to Dr. Warren, of Boston. It still exists in the private Warren Museum. 



