106 REPORTS ON THE STATE OF SCIENOE.—1917. 
Nomenclature of the Carboniferous, Permo-Carboniferous, and 
Permian Rocks of the Southern Hemisphere.—Report of the 
Committee consisting of Professor T. W. EpDGEWorRTH 
Daviv (Chairman), Professor E. W. Sxeats (Secretary), 
Mr. W. 8. Dun, Professors J. W. Grecory and Sir T. H. 
Houuanp, Mr. W. Howcutn, Mr. A. EK. Kitson, Mr. G. 
W. LAmpyuGH, Dr. A. W. Rocsrs, Professor A. C. SEWARD, 
Mr. D. M. §. Watson, and Professor W. G. WoonnoucH, 
appointed to consider the above. 
Arter the publication of the First Report the Secretary of the Com- 
mittee sent requests for further communications on the subject under 
consideration to members of the enlarged Committee and to other geolo- 
gists and paleontologists likely to contribute usefully to the discussion. 
In spite of the continuance of untoward conditions due to the war, 
several replies have been received as mentioned in the Interim Report 
of last year, and are printed below. Five of these relate more particu- 
larly to the Australasian deposits and the other two to the equivalent 
formations in South Africa. The series of questions sent out by the 
Secretary and answered in the communications were printed in the 
First Report,’ to which reference should be made in reading the 
replies. 
It is still desirable to secure the opinion of geologists who have 
worked in India on the classification of the rocks of the same age in 
that region. The Committee therefore asks for reappointment without 
erant. 
Notes on Report of Committee on Carboniferous and Permo-Carboni- 
ferous and Permian Rocks of Southern Hemisphere. 
By F. Carman, A.L.S., Pale@ontologist to National Museum, 
Melbourne. 
In points for discussion raised by Prof. Skeats: 
1. It is advisable to retain the local terms, since they may represent 
slightly different horizons in different areas; but they should be included 
under a general systematic term. 
2. A general name is to be preferred for the system, since no local 
terms may exactly agree with terrains elsewhere. For example, Jan- 
jukian in Cainozoic strata cannot be restricted to strata as developed 
in the Torquay cliffs. 
3. I would favour Carbopermian, (a) because the sequence of the 
beds is a gradual one, and it is therefore impossible to define its limits 
above or below, (b) because this order of the word-particles is correct 
according to the time-sequence, unless it is held to be a Carboniferous 
deposit qualified by a Permian admixture, which is hardly the case. 
The term Carbopermian was strongly favoured by the late Prof. 
Rupert Jones. 
4. The evidence re glaciation points to a recurrence of the pheno- 
menon in some places but not in others. The plants (e.g. Gangamo- 
pteris) and Foraminifera (in N.S. Wales and W. Australia) should be 
studied for notions of general horizons (as, for example, Nubecularia 
» Rep. British Assoc. for 1915, pp. 263-266. 
