miS.] ^gg fT,esloy. 



and anticipating it in tlio IVeshor analoiions of tlio fading out life- 

 forms. Questions then of tlie comparative cbrouology of strata 

 in Europe and America l)y fossils, are of less importance than 

 questions of structure and process and condition — questions 

 not of the ivhen, hut of the hoiv and ivhi/. 



"Where was the forest in which this strange creature browsed ? 

 What Avas the river down which his dead hody floated? Where 

 ran the shores of the sea in the marl of which he sank? Why 

 w-ere his bones not destroyed before the sediment could cover 

 them ? How high Avere the Germantown hills in that Cretaceous 

 era? And Avhat was the (iulf Stream doing? How far may 

 the dip of the visible strata carry out the marl beneath the 

 Atlantic seaboard ? What has given this almost imperceptible 

 and yet universal south-east inclination to all the Cretaceous 

 and Tertiary Formations of the Tide Water border of our Con- 

 tinent ? These, and other questions like them, are worthy of 

 the sleepless thought of our geologists. 13ut a prolonged dis- 

 cussion of whether the facies of the fauna of the Iladdonficld 

 marls is enough like the facies of the fauna of the Blackdown 

 Greensand of Fitton, or the Cenomanien of D'Orbigny's enu- 

 meration, to establisli the S3'nchronism of their deposition, seems 

 almost puerile, as we know that every region has its different 

 fauna at the present moment. Such questions ma^^ do to ex- 

 ercise the observations of young geologists and stimulate their 

 classifications. But trained and experienced thinkers will busy 

 themselves with iar more difficult and delicate questions, until 

 the settlement of which our science will continue to wear too 

 much the semblance of a watchcase without the Avorks. It was 

 chiefly because of his interest in such questions, that Mr. Foulke 

 never engaged in the determination of specific forms. His mind 

 Avas philosophic in the largest and highest sense, and loved to 

 deal with questions of the most comprehensive reach ; while he 

 felt all the importance of accuracy- in details, and the genuine- 

 ness of fundamental data. But he was especially inspired by 

 the progress of Human Knowledge ; and many an hour he spent 

 discussing its steps and stages in the historA' of the past, its 

 lines of movement now, and the indications of its future course.* 



* Mr. Cope has recently niade the important diseovfry off a fresh-water stra- 

 tum of blue clay, apparently lower In position than the Hadrosaurus bed of 

 Haddonfleld. The new locality is six miles north-east of Camden, and ten 

 miles north of the pit in which. the Hadrosaurus was found (see Mr. Isaac Lea'.» 

 VOL. X. — 3p 



