N. A. INVERTEBRATE PALEONTOLOGY. 751 



Historical view, pp. 169, 170 ; Geological view, p]). 170, 171 ; Botani- 

 cal view, pp. 171-174, aud a table showing the "Number of S])ecies of 

 each of the riiucipal Types of Yegetatiou that have been found Fossil 

 in each Geological Formation ; also, the number existing at the present 

 time, as nearly as it is possible to ascertain, together with the percent- 

 age that each type forms of the total flora of each formation," pp. 172, 

 173. 



Ward, L. F. — A Glance at the History of our Knowledge of Fossil 

 Plants. Science, vol. v, pp. 93-95. January, 1885. Cambridge. 



Ward, L. F. — Clironology of the Fossil Flora. Fop. Sci. Monthly, vol. 



XXVI, p. 574, February, 1885. New York. 



A brief abstract of Mr. Ward's review of what is known of the fossil 

 flora of the globe before ihe Amer. Assoc. Adv. Sci. 



Ward, L. F.~ Historical View of the Fossil Flora of the Globe. Proc. 



Amer. Assoc. Adv. Sci., vol. xxxiii, part ii, pp. 493-495. 1885. Salem. 



Abstract. Says that the first attempt to place vegetable palaeontol- 

 ogy on the footing of a systematic science was made by the Rev. Henry 

 Steinhaver, of Bethlehem, Pa., in a paper read before the Amer. Phil. 

 Soc, and published in its " Proceedings " for the year 1818. 



Ward, L. F. — Geological View of the Fossil Flora of the Globe. Proc. 



Amer. Assoc. Adv. Sci., vol. xxxiii, part ii, pp. 495, 496. 1885. Salem. 



(Abstract. Gives the number of species occurring in the different 

 formations.) 



Ward, L. F. — Botanical View of the Fossil Flora of the Globe. Proc. 



A^ner. Assoc. Adv. Sci., vol. xxxiii, part ii, pp. 496, 497. 1885. Salem. 



Abstract. Gives an account of the first appearance of types of the age 

 of the maximum relative predominance of each type, and of the proba- 

 ble true period of origin and of maximum absolute development of each 

 type. 



Ward, L. F.— Evolution in the Vegetable Kingdom. Amer. Nat, vol. 

 XIX, pp. 637-044 and pp. 745-753. July and August, 1885. Philadel- 

 phia. 



An inquiry as to what vegetable pah^ontology has to present in favor 

 of evolution in plants. The subject is considered under three somewhat 

 distinct points of view, the historical, the geological, and the botanical. 

 Gives a diagram (p. 749) representing graphically the development of 

 ])lant life through the successive geologic ages. Gives a diagram show- 

 ing the progress of each of the leading types of plant life in the differ- 

 ent geologic ages (p. 752). 



Ward, L. F. — Evolution in the Vegetable Kingdom. Nature, vol. 

 xxxii, 1). 568. 1885. London and New York. 

 JNotice of Mr. Ward's paper in t\ni American Iifg^turfilUt 



