300 REFERENCES. 



47 OwsjANNlKOW, Philip. Ueber das Centralnervensystem ties 

 Ainphioxiis lanceolatns. Bulletin de PAcad. imp. des Sciences de 

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 Also in Mdlanges Biologiqucs, T. VI. pp. 427-450. 



Introduced a method of maceration by which he was able to 

 shake out the central nervous system and thus isolate it from the 

 body. In this way he was able to correct the erroneous descrip- 

 tions of de (2iiairefages and others (who stated that there were 

 ganglionic enlargements in the spinal cord), and to discover the 

 alternate arrangement of the spinal nerves. 



48 Platt, Julia B. Fibres connecting the Central Nervous System 

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 2S4. Three figures in text. 



49 Pollard, E. C. A New Sporozoon in Amphioxus . Quarterly 

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Unicellular parasites in intestinal epithelium. 



49 to. PouCHET, Georges. 0?i the Laminar Tissue of Amphioxus. 



Quarterly Jour. Micro. Sc. XX. N. S. pp. 421-430. Plate XXIX. 



50 DE QuATREFAGES, Armand. Mimoire sur le systhne nerveuX 

 et sur fliistologie du lirancliiostome ou ylmphioxus. Annales des 

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First observation of passage of ova through atriopore ; and 

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 cranial nerves. 



51 Rathke, Heinrich. Bemerkungen uber den Bau des Amphi- 

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52 Retzius, Gustav. Zur Kenntniss des ccntralen Nervensystems 

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52 bis. Retzius, Gustav. Das hintere Ende des Jiiickenmarks utid 



sein Verhalten zur Chorda dorsalis bei Amphioxus lanceolatus. 

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53 ROHDE, Emil. Histologische Untersuchungen tiber das Nerven- 

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Standard work on the central nervous system of Amphioxus. 



54 ROHON, Josef Victor. Untersuchungen iibcr Amphioxus 

 lanceolatus. Ein Beitrag zur vergleiclienden Anatomie der It ir- 



