Maryland Geological Survey 197 



district of New Jersey and resulted in several preliminary papers and a 

 final monograph * published posthumously in 1896 and devoted primarily 

 to the flora of deposits now known as the Raritan formation, in which 

 one hundred and fifty-six species were described. Subsequent collections 

 resulted in the publication of " Tbe Flora of the Raritan Formation " by 

 the writer 2 in 1911. In this work, which is complete for the Raritan for- 

 mation of the New Jersey area, the geology and the flora are fully 

 described and the antecedent literature is cited in detail. 



The work of Hollick has been almost entirely confined to the area from 

 Staten Island eastward. A long series of minor contributions com- 

 mencing in 1892 culminated in a handsome monograph 3 published in 

 1907 in which all of the previous literature is fully quoted. Subse- 

 quently this author has published an account 4 of additions to this flora, 

 and in collaboration with E. C. Jeffrey has given an elaborate account * 

 of the important structural coniferous material contained in the Raritan 

 formation on Staten Island. Jeffrey and a number of his students have 

 also published in recent years several minor papers on structural material 

 from this general region. 8 



1 Newberry, J. S., The Flora of the Amboy Clays, Mon. U. S. Geol. Survey, 

 vol. xxvi, 1895. 



2 Berry, E. W., Bull. 3, Geol. Survey N. J., 1911. 



3 Hollick, A., The Cretaceous Flora of Southern New York and New Eng- 

 land. Mon. U. S. Geol. Survey, vol. I, 1906. 



4 Hollick, A., Mem. N. Y. Bot. Garden. 



5 Hollick & Jeffrey, Studies of Cretaceous Coniferous Remains from Kreis- 

 cherville, New York. Mem. N. Y. Bot. Garden, vol. iii, 1909. 



6 Jeffrey, E. C, A New Prepinus from Marthas Vineyard. Proc. Boston Soc. 

 Nat. Hist., vol. xxxiv, 1910, pp. 333-338, pi. xxxiii. 



— The Affinities of Geinitzia gracillima. Bot. Gaz., vol. 1, 1911, pp. 21- 



27, pi. viii. 



Bailey, I. W., A Cretaceous Pityozylon with marginal tracheides. Ann. 

 Bot., vol. xxv, 1911, pp. 315-325, pi. xxvi. 



Holden, R., Cretaceous Pityoxyla from Cliffwood, New Jersey. Proc. Amer. 

 Acad. Arts and Sci., vol. xlviii, 1913, pp. 609-623, pis. i-iv. 



Contributions to the Anatomy of Mesozoic Conifers. No. 2. Cretaceous 



Lignites from Cliffwood, New Jersey. Bot. Gaz., vol. lviii, 1914, pp. 168-177, 

 pis. xii, xv. 



Jeffrey, E. C, On the Structure of the Leaf in Cretaceous Pines. Ann. Bot., 

 vol. xxii, 1908, pp. 207-220, pis. xiii, xiv. 



Sinnott, G. W., Paracedroxylon, a New Type of Araucarian Wood. Rhodora. 

 vol. xi, pp. 165-173, pis. lxxx-lxxxi. 



