456 PROTOPHYTA 



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

 words of de Bary (' Comp. Morph.,' &c., 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 

 Nostocaces ; secondly, that of the Mycetozoa ; thirdly, that of the 

 chlorophyllaceous Algse, with which are connected in ascending line the 

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

 lateral branches. . . . fourthly, 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 Methoden der Bacterienforschung (Wiesbaden, 1885). 

 Zopf — Die Spaltpilze (Breslau, 1884). 



The references to the vast literature of the subject in the above books vjfill 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. 



