492 THE STORY OF PLANT LIFE 



careful collection in the field, and patient research at home 

 in the identification of species, or the elucidation of 

 botanical structures. Microscopic slides of well-preserved 

 carboniferous plants afford as much detail as those of 

 modern plants, and structural palaeobotany is of even 

 greater importance and value than systematic fossil botany, 

 or the study of form and outline, or external characters. 



The literature of fossil botany has already assumed 

 alarming proportions for the specialist. In order to assist 

 the beginner the following works, or references to sources, 

 are given : 



Studies in Fossil Botany, 2 vols., 2nd edition. — Dr. D. H. 

 Scott. 



Fossil Plants, Vols. I-IL— Prof. A. C. Seward. 



The Evolution of Plants.— D. H. Scott. 



Links with the Past in the Plant World.— Prof. A. C. 

 Seward. 



Ancient Plants. — Dr. Marie C. Stopes. 



Elements de Palseobotanique. — M. Zeiller. 



Fossil Botany. — Graf. zu. Solms Laubach. 



The Geological History of Plants.— Sir J. W. Dawson. 



American Fossil Cycads. — G. R. Wieland. (See also the 

 works of Laurent and Lignier.) 



Catalogue of Palaeozoic, Triassic, Liassic, Jurassic, 

 Wealden Plants in the British Museum, and of the 

 Glossopteris Flora, Cretaceous Plants (in the press). 



Palseontographical Society's Memoirs on Carboniferous 

 and Eocene Floras. 



Philosophical Transactions, Royal Society, Memoirs on 

 the Organisation of Fossil Plants of the Coal-Measures, by 

 W. C. Williamson, D. H. Scott, and other papers by Prof. 

 A. C. Seward, E. A. N. Arber, Dr. R. Kidston (and in 

 Transactions, Royal Society of Edinburgh), Prof. F. W. 

 Oliver, Dr. M. C. Stopes, etc. 



