360 JoURNAL OF CoMPARATIVE NEUROLOGY. 
the conclusion that the mushroom bodies of the insects and 
crayfish are homologous. 
The above table indicates that the worms also contain mush- 
room bodies in a lower stages of development than those of 
the insects. 
BIBLIOGRAPHY. ! 
GENERAL. 
796. BECHTEREW. Die Lehre von den Neuronen und die Entladungs- 
theorie. Meurol. Centralbl. pp. 50-57, 103-113. 
82. Brxtioncr. Intorno alla struttura e alle connessione dei lobi olfattori 
negli arthropodi superiori e nei vertebrati. Reale Acad. d. Lincei, Ser. 3, XIII, 
P+ 555-564. 
78. BERGER, E. Untersuchungen iiber den Bau des Gehirns und der — 
Retina der Arthropoden. Aréett. aus d. zool. Station in Triest, T. 1, p. 173-220. 
76. DietTL, M. J. Die Organization des Arthropoden Gehirns. Zezts. f. 
wiss. Zool., Bd. 27, Abth. II, s. 488-517. 
*50. DujyARDIN. Memoire sur le Systeme Nerveux des Insects. Ann. 
Sct. Nat., Ser. 3, tome XIV, pp. 195 et seq., Pl. IV. 
*78. FLOGEL. Ueber den eitlichen Bau des Gehirns verschiedenen 
Inseckten Ordnung. Zezt. f. wiss. Zool. Bd. XXX, Supp., pp. 556-592. 
’97. GoopricH, E.S. Onthe Relation of the Arthropod Head to the 
Annelid Prostomium. Quart. Journ. Micro. Sct., Vol. XL, pt. II, new series, 
PP. 247-268, 12 figs. 
*86. HALLER. Ueber die sogenante Leydigsche Punktsubstanz in die 
Centralnervensystem. Morph. Jahrob., Bd. 12. 
98. HAMAKER, J. J. The Nervous System of Merezs virens, Sars. A 
Study in Comparative Nenrology. Bull. Mus. Comp. Zool. at Harvard College, 
Vol. XXXII, No. 6. 
"42. HANNOVER. Mikroskopiske Undersdgelser af Nervensystemet. 
Kjobenhaven. 
*42. -HELMHOLTZ. Die fabrica systematis nervosievertebrata. Berol. 
796. KENYON. The Brain of the Bee. /our. of Comp. Neur., Vol. VI, 
PP- 133-210, pls. XIV-XXII. 
64. Leypic, Fr. Vom Bau des thierischen Kérpers. Handbuch der 
vergleichenden Anatomie, Bd. I. 
"85. Lrypic, Fr. Zelle und Gewebe. Sonn. 
87. NANSEN, FRIDTJOF. The Structure and Combination of the Histo- 
logical Elements of the Central Nervous System. Bergens Mus. Aarsb. for 1886. 
1 This list is divided into two sections, a ‘“General” séction containing a 
few leading works on the brains of arthropods other than Crustacea, and a 
«‘Crustacea’’ section containing a list of works upon the nervous system of the 
Crustacea. An attempt has been made to make the crustacean bibliography 
complete up to 1898. 
