278 Proceedings of the Royal Society of Victoria. 



22. Nerves IX. and II. show no decided relations with one 

 another. The frequency of nerve II., thickness 3, 4 and 5, 

 reaches its maxima with nerve IX., thicknesses 10, 7 and 11 in 

 order. This might be understood to indicate increase in the two 

 nerves. On the other hand nerve II., thickness 3, occurs chiefly 

 with nerve IX., thickness 10, and nerve II., thickness 6, with 

 nerve IX., thickness 9. 



23. While VIII. increases, IY. increases also. Nerve IV., 

 thickness 2, only occurs with nerve VIII., thickness 3, and nerve 

 IV., thickness 6, only with nerve VIII., thickness 8; also the 

 maxima of frequency of nerve IV., thicknesses 3, 4 and 5, are 

 found with nerve VIII., thickness 6, 7 and 8 respectively. 



24. Nerves VIII. and III. probably increase concurrently, 

 though the table appears somewhat irregular. The two smallest 

 thicknesses 7 and 9 of nerve III. are only found with the two 

 smallest thicknesses 3 and 4 of nerve VIII. The maxima of 

 frequency of nerve III., thicknesses 10, 11, 12, 13 and 14, are 

 found severally with nerve VIII., thicknesses 3, 6, 5, 8 and 8. 



25. No definite relations appear between nerves VIII. and 



II. in this table beyond the occurrence of the highest thickness 

 (6) of nexwe II. with nerve VIII., thicknesses 3 and 4 only, 

 which may be understood to signify that an increase in VIII., 

 is accompanied by a decrease in II. 



26. While IV. decreases, III. decreases, or while IV. 

 increases, III. increases. Independently of slight irregulai-ities 

 in nerve III., thickness 10, we find that there is a gradual 

 increase in thickness of nerve III., corresponding to an increase 

 of nerve IV. This is confirmed by the occurrence of nerve III., 

 thicknesses 15 and 19 with thicknesses 4 and 5 of nerve IV., 

 while nerve III., thicknesses 7 and 9 occur with nerve IV., 

 thicknesses 3 and 4. 



27. Nerves IV. and II. appear to have no regular relation 

 between them beyond the fact that nerve II., thickness 3, 

 occurs slightly more frequently with nerve IV., thickness 5, 

 while nerve II., thickness 6, only occurs with nerve IV., thick- 

 nesses 3 and 4. 



28. This table distinctly shows on the whole an increase in 

 thickness of nerve II., with an increase in thickness of nerve 



III. Thus nerve II., thicknesses 3, 4, and 5 occur chiefly 

 with nerve III., thicknesses 9, 10, and 13. Further, nerve II., 



