4 Prot. 
XVIII. PROTOZOA. 
certain other forms from wild animals. The Trypanosome of mal de 
Caderas has also received much attention, chiefly on the part of Elmas- 
sian & Migone (98), Ligni^res (227) and Sivori & Lecler (357). 
Turning to minute structure, several interesting papers dealing mainly 
with the locomotor organs and associated directive (nervous ?) elements of 
various Flagellates and Ciliates have to be recorded. Among these are the 
contributions of L^ger (204), Maier (243), Neresheimer (279) and 
Prowazek (302), all of which are to be found in the Archiv Fur Protisten- 
Kunde. This periodical, it may be added, continues to admirably satisfy 
a long-felt want of protistologists. 
Of a more generalized character are Hertwig’s thoughtful papers 
(150 & 151) on the various conditions affecting the relative size of nucleus 
and cytoplasm and the metabolic interchange between these two con- 
stituents of the cell, in which he draws frequently upon the Protozoa 
for illustration. The “ recuperation ” question and its significance is 
discussed by Loisel (236-238), whose conclusions somewhat differ from 
those of Calkins. Prowazek has been occupied with regeneration experi- 
ments, which he recounts in (304 & 305) and Stevens, in her instructive 
and well-illustrated account (371) of Licnophora also treats of this subject, 
reserving a fuller consideration of it, however, for her paper in this 
connection on Stentor (372). 
In the Bionomical section, the Recorder would like to comment, on the 
one hand, upon the inexhaustible capacity of the ponds at Plon to reveal 
new treasures, of which full advantage is taken by Voigt (394-396), 
Zacharias (418-422), and others, and, on the other hand, upon the con- 
tinued and futile attempts of Bose (30), Feinberg (108-9), and Plimmer 
(299) to find Protozoan parasites that may be held responsible for cancer 
and other epitheliomatous maladies, an explanation more than ever im- 
probable, at any rate, as regards the first-named disease, at the present 
time. 
For various works on Geographical Distribution, the reader is referred 
to the different papers by Calkins, Daday, Forel, Issel, Kler, Levander, 
Millett, Pearcey, Penard, Silvestri, and West, and on Geological 
Distribution to those by Bagg, Fornasini, Guppy, Herrmann, Liebus, 
Newton & Holland, Schlumberger, Schubert, Silvestri, Squinabol,. 
Toutkowski, Volz, Wojcik, Wright and others. 
An important event in the Protozoan world in 1903 was the publication 
of the part of Lankester’s “ Treatise on Zoology ” dealing with this group, 
or rather, to be precise, of the first fascicle of that part. The work com- 
prises four sections, the first of which, in a measure introductory, is by 
Farmer (107) on the structure of animal and vegetable cells ; the others 
are, in order, the Foraminifera by Lister (232), the Sporozoa by Minchin 
(265), and the Infusoria by Hickson (155). Minchin’s account of the 
Sporozoa and Lister’s of the Foraminifera are particularly well done and 
merit high commendation. Considerations of space preclude more detailed 
notice ; let it suffice to add that if the second fascicle maintains the high 
level reached by the first, Protozoan researchers will possess, in this 
account, by far the best treatise on their group extant. 
Among general Systematic works, Calkins (47) enumerates and diagnoses 
the marine Protozoan fauna of Woods Hole. Penard (288 & 289) con- 
tinues his study of Rhizopods, considering, in the latter paper, several 
interesting forms which shew affinities in more than one direction. As 
already indicated, there are not many Foraminiferal papers of great 
importance to chronicle. Were it not for the fact that Rhumbler (318) 
commences to monograph the “recent Reticulosa,” the systematic part 
allotted to this order would be shorter than usual. Silvestri, it may be 
noted, continues in (352-355) his efforts in the direction of a natural 
classification based upon form-modification and transitional types, and 
