838 



HISTORICAL GEOLOGY. 



and 1375, Eucalyptus Geinitzi Heer, from Gay Head, also occurring in Green- 

 land, Bohemia, and Moravia, — a genus now mostly confined to Australia. 

 Fig. 1376 represents a nut of the Eucalyptus. D. White, the describer of the 

 Gay Head plants (1890), states that these nuts contain iu their furrows an 

 amber-like resin, and suggests that the Eucalyptus Tree may have been the 

 source of the "amber" of the Gay Head and New Jersey regions. 



1372 



1373 



1369-1376. 



1371 



Angiospekms. — Fig. 1869, Sassafras Cretaceum ; 1370, Liriodendron Meekii ; 1371, L. simplex ; 1873, Andromeda 

 Parlatorii ; 1373, Myrsine borealis ; 1374, Sails Meekii ; 1375, Eucalyptus Geinitzi ; 1376, nut of Eucalyptus. 

 Figs. 1369, 1370, 1374, Newberry ; others, D. White. 



CoccoUths, calcareous disks less than a hundredth of an inch in diameter 

 (page 437), which are now common over the bottom of the deep oceans, con- 

 tributed to the Cretaceous limestones, and are abundant in the Cretaceous of 

 the east slope of the Rocky Mountains. 



In the clays of Gay Head, on Martha's Vineyard, the most eastern Cretaceous region 

 of the continent, D. White identified Sphenopteris GrevilUoides Heer, of the Kome beds, 

 Greenland ; Sequoia ambigtia Heer, Kome and the Lower Atane (or Middle Cretaceous) ; 

 Andromeda Parlatorii, Lower Atane; and also a Sapindus, near S. Morrisoni of Lesque- 

 reux, a Dakota and Greenland species. 



