456 PROTOPHYTA 



can hardly say. In conclusion, and as summing the matter up, the 

 words of de Bary (' Comp. ]Mori)h.,' kslc, p. 475) may be quoted. ' If we 

 assume for a moment a connection between the Bacteria and the 

 Flagellata, it is evident that as a consequence the following series of 

 forms converge to the Flagellata : firstly^ the series of Bacteria and the 

 Nostocace^ ; secondly^ that of the Mycetozoa ; thirdly, that of the 

 chlorophyllaceous Algas, with which are connected in ascending line the 

 main series of the vegetable kingdom and of the Fungi as one or more 

 lateral branches. . . . fourtJily, and lastly, the Rhizopoda and the 

 Protozoa with the animal kingdom, which connects with these in an 

 ascending line.' 



Literature. 



De Bary — Vorlesungen liber Bacterien (Leipzig, 1885 and 1886). (See English trans- 

 lation by Garnsey and Balfour, Oxford, 1887.) 



The above contains an admirable guide to the literature of the subject. (See 

 also the same author's Comparative Morphology, &c. ) 



Cornil et Babes — Les Bacteries, &c. , 2nd ed. (Paris, 1886). 



Crookshank — Introduction to Practical Bacteriology (London, 1886). 



Duclaux— Chimie biologique (Paris, 1883). 



Grove — A Synopsis of the Bacteria and Yeast Fungi (London, 1884). 



Klein — Micro-organisms and Disease, 3rd ed. (London, 1886). 



Hueppe — Die Formen der Bacterien (Wiesbaden, 1886). 



Hueppe — Die JNIethoden der Bacterienforschung (Wiesbaden, 1885). 



Zopf— -Die Spaltpilze (Breslau, 1884). 



The references to the vast literature of the subject in the above books will be a 

 sufficient guide to the most ardent student. At the same time it would be unpardon- 

 able to abstain from a special reference to the labours of Cohn, Pasteur, Koch, Lan- 

 kester, Brefeld, Van Tieghem, Prazmowski, Naegeli, and Lister, since these are of 

 fundamental importance. 



