396 SCIENCE PROGRESS. 



but evidence of their actual plant characters is yet incom- 

 plete and must remain so until competent observers have 

 studied them alive. However, after the doubts thrown on 

 the very existence of the Coccospheres and Rhabdospheres 

 by the Hensen Expedition it is refreshing to find our 

 countrymen vindicated. Captain Milner certainly deserves 

 congratulation on having accomplished in a mail steamer, 

 keeping contract time, what a thoroughly equipped German 

 National Expedition failed to effect. 



BIBLIOGRAPHY. 



(i) A Summary of the Scientific Results of the Voyage of the 

 H.M.S. ''Challenger''' (in two parts). By John Murray, 

 LL.D., London, 1895. 



(2) fournal of the Rt. Hon. Sir foseph Banks, Bart., during Capt. 



Cook's First Voyage in H.M.S. Endeavour in lydS-yi. 

 Edited by Sir Joseph D. Hooker. Macmillan & Co., 

 London, 1896. 



(3) Die Bakterien des Meeres nach den Untersuchungen der Plankton- 



Expedition. Von Dr. Bernhard Fischer, 1894. 



(4) Die Peridinieen der Plankton Expedition. Von Dr. Franz 



Schiitt. Theil i., 1895. {Ergebnisse der Plankton-Expedi- 

 tion der Humbolt-Stiftung herausgegeben von Victor Hen- 

 sen. Bd. iv.). 



(5) Peridiniales und Bacillariales (Diatomeae). Von Dr. Franz 



Schiitt (^;/^/^r und PrantVs Die Natiirlichen Pflanzenfamilieiiy 

 Theil i., Leipzig, 1896). 



(6) On the Endocysts of Diatoms. By Thomas Comber {Proc. 



Roy. Micr. Soc, 1896). 



(7) On the Reproduction of Some Marine Diatoms. By George 



Murray {Proc. Roy. Soc. Edin., 1897). 



(8) Report on Plant Plankton. By George Murray {Report of 



Fishery Board for Scotland, 1 897). 



(9) Coccospheres and Rhabdospheres. By George Murray and 



V. H. Blackman {Nature, ist April, 1897). 



George Murray. 



