SCIENCE 
EpIToRIAL Commirrre: S. NEwcoms, Mathematics; R. S. WoopwWARD, Mechanics; E. C. PICKERING 
Astronomy; T. C. MENDENHALL, Physics; R. H. THuRston, Engineering; IRA REMSEN, Chemistry ; 
J. Le ContE, Geology; W. M. Davis, Physiography; O. C. MarsH, Paleontology; W. K. Brooks, 
C. Hart Merriam, Zoology; S. H. ScupDER, Entomology; C. E. Besspy, N. L. BRiTTon, 
Botany; Henry F. OsBorn, General Biology; C. S. Minor, Embryology, Histology ; 
H. P. Bownpircu, Physiology; J. S. Brutines, Hygiene; J. McKEEN CATTELL, 
Psychology; DANIEL G. BRINTON, J. W. POWELL, Anthropology. 
Fripay, DEcEMBER 24, 1897. 
CONTENTS: 
The Founders of Geology: W. B. CLARK.........--- 925 
Characters, Congenital and Acquired—HII.: G. 
ARCHDALL REID..........ccsecceeeeeeccneecseeceecnsscees 933 
Some Recent Observations on the Influence of the Thy- 
roid Gland on Metabolism : YANDELL HENDER- 
BICIY nodcaspandoqo9asb0nsdnbsb3acacoREoDEeaSqHONGescccqs0005000 948 
The Enzymic Ferments in Plant Physiology: YF. A 
VAY NTC iER sp sncoa doonacosossoocangapn seoccanduecoacoaacoo0cHe00 950 
Current Notes on Anthropology :— 
The Oldest Crania from Central Mexico; The Old 
Land-bridge to Europe: D. G. BRINTON.......... 952 
Scientific Notes and News :— 
American Matiematical Society ; American Society 
of Naturalists and Affiliated Societies ; General....953 
University and Educational News. .......++++--+.-s0es0e 957 
Discussion and Correspondence :— 
The Agonoid Genus Percis of Scopoli: THEO. 
(GITIDBy cocsoaqancdogndeccaodssopcab0d0N9 ianoccasadedocasagaco0ec 958 
Scientific Literature :— 
Recent Mathematical Books: F.N.CoLE. Spen- 
cer’s Handbook for Chemists of Beet-sugar Houses 
and Seed-culture Farms: FERDINAND G. WIECH- 
MANN. Ratzel’s History of Mankind: D. G. 
BRINTON. Biigsen’s Bau und Leben unserer Wald- 
béume: B. E. FERNOW. Schniewind-Thies on 
Kenniniss der Septalnectarien: J. N. V. OSTER- 
Hour. The Living Substance as such and as Or- 
ganism. JJigula’s System der Bukterien: A. C. 
JNTIORES, cnagoadesanqgecqnodobagsqu0s acacr cobosocecconDséoCead 958 
Societies and Academies :— 
The Chemical Society of Washington: V. K. 
CuHEsNUT. Biological Society of Washington: F. 
A. Lucas. Anthropological Society of Washing- 
ton: J.H. McCormick. Torrey Botanical Club : 
E. S. BURGESS 965 
Scientific Journals 
New Books 
MSS. intended for publication and books, etc., intended 
for review should be sent to the responsible editor, Prof. J. 
McKeen Cattell, Garrison-on-Hudson, N Y. 
‘the Macmillan press.* 
THE FOUNDERS OF GEOLOGY. 
Tue geologists of America in April of the 
present year welcomed to this country Sir 
Archibald Geikie, the distinguished Direc- 
tor-General of the Geological Survey of 
Great Britain and Ireland, on the occasion 
of his coming to give the opening course of 
lectures upon the George Huntington Wil- 
liams memorial foundation at the Johns 
Hopkins University. The many represent- 
ative men from all portions of America who 
went to Baltimore to listen to him shows 
the high position of authority which he 
holds in geological science and the desire 
which was universally felt to do honor to 
the man. Those who met him and listened 
to his carefully prepared words gained an in- 
spiration which will be long felt in geology 
on this side of the Atlantic. 
The lectures, which have been recently 
printed, appear in an attractive form from 
In the introduction 
to the first lecture of the course the author 
states that the searcher after truth is liable 
to lose sight of the paths already trodden, 
and that it is, therefore, “‘eminently useful 
now and then to pause in the race, and to 
look backward over the ground that has 
been traversed, to mark the errors as well 
as the successes of the journey, to note the 
hindrances and the helps which we and our 
* The Founders of Geology, by Sir Archibald Geikie, 
X. 297 pp. 1897. Macmillan & Co., London. The 
Macmillan Company, New York. 
