r oCIBNCE 
A WEEKLY JOURNAL DEVOTED TO THE ADVANCEMENT OF SCIENCE, PUBLISHING THE 3 
OFFICIAL NOTICES AND PROCEEDINGS OF THE AMERICAN ASSOCIATION 
FOR THE ADVANCEMENT OF SCIENCE. 
EDITORIAL COMMITTEE : 8. NEwcomsB, Mathematics; R. 8S. WooDWARD, Mechanics; E. C. PICKERING, 
Astronomy ; T. C. MENDENHALL, Physics ; R. H. THURSTON, Engineering ; IRA REMSEN, Chemistry; — 
JosEPH LE ConTE, Geology ; W. M. Davis, Physiography ; HENRY F. OsBoRN, Paleontology ; 
W. K. Brooks, C. HART MERRIAM, Zoology ; S. H. ScuppER, Entomology ; C. E. BESSEY, 
N. L. Brirron, Botany; C. S. Minot, Embryology, Histology; H. P. BownpitrcH, 
Physiology; J. 8S. BILLINGs, 
Hygiene ; 
WILLIAM H. WEtcH, Pathology ; 
J. McKEEN CATTELL, Psychology ; J. W. POwELL, Anthropology. 
Fripay, May 24, 1901. 
CONTENTS : 
Professor Rowland, 1848-1901 (with plate) : 
PRESIDENT DANIEL C. GILMAN ............2-00006 801 
An Outline of the Progress in Chemistry in the Nine- 
teenth Century: PROFESSOR EDWARD H. KEI- 
STBR scoscsq09 sospeaqdoeononSoadonondotionoooanossecenocHnOCS 803 
Campanus : OC. S. PIERCE,......c00..0cceseeneeeeeceeecees 809 
The American Association for the Advancement of 
SRAOGE scocaccncboncoosanpce Sasson cooangoDacadosEcoDsaN5a090 811 
Scientific Books :— 
Wilson on Topographic Surveying: PROFESSOR 
J.H.GoRE. Meteorological Reprints: A. LAW- 
RENCE RoreH. Brvhl’s Die Pflanzen Alkaloide: 
HENRY KRAEMER. LEnzyines and their Appli- 
cation: ALBERT F. Woops. The Cyclopedia of 
American Horticultwre: Tu...eccceccssecesseveneeeees 820 
Societies and Academies :— 
The American Physical Society : PROFESSOR ER- 
NEST MERRITT. The Chemical Society of Wash- 
ington: L.S. Munson. The Onondaga Acad- 
emy of Science: PHILIP F. SCHNEIDER. The 
Baconian Club of the State University of Iowa : 
Dr. C. E. SEASHORE. The Academy of Science 
of St. Lowis ;: PROFESSOR WILLIAM TRELEASE. 823 
Discussion and Correspondence :-— 
The Larynx as an Instrument of Music: PRo- 
FESSOR ARTHUR GORDON WEBSTER. The New 
Comet: GEORGE A. HILL. The Teaching of 
Physiology in the Public Schools: PROFESSOR S. 
W. WILLISTON ........ dddcaxarRHNIcHDDSaDDDTbASDCOEGODRS 827 
Shorter Articles :-— 
Unilateral Coloration with a Bilateral Effect : 
PROFESSOR C. H. EIGENMANN and CLARENCE 
KENNEDY. Velocity of Ions from Electric 
Arcs and from Hot Wires: Dr. C. D. CHILD. 
Modulus of Constant Cross Section: BENJAMIN - 
181, LBRO Sion cosnaosoccononpsopBaoaccincn ooabpeoosponqaGoS 
Notes on Inorganic Chemistry: J. L. H.... 
Botanical Notes :— 
International Botanical Association ; Stock-poi- 
soning Plants; North American Fernworts : PRO- 
FESSOR CHARLES E. BESSEY...... ppg oose208NG00I006 832 
Museum Notes :— 
Publications of the Carnegie Museum ; The Field 
Columbian Museum ; The South African Museum : 
1315, Xo bp oogoanabengeouounsscanasasessnacedededoods daadodon6a 834 
Aquatic Resources of the Hawaiian Islands........... 835. 
The British Antarctic Expedition. .......0..c.0seseeeee 836 
Scientific Notes and News.......ccceccssvesesessesvseeees 836 
University and Educational News ....0.1.c.ssssccceeees 839. 
PROFESSOR ROWLAND, 1848-1901.* 
A Great man has fallen in the ranks— 
great in talents, great in achievements, 
great in renown. Not now need we recall, 
the incidents of his life, nor estimate the 
characteristics of his impressive personality, 
nor enumerate his contributions to physical 
science. We are assembled in this aca- 
demic hall as his friends, his pupils, his 
colleagues, about to follow his deserted 
body to the church, and there in silence to 
give thanks for such an example, or to 
utter, with his kindred, words of faith and 
hope, consecrated by the comfort they have 
given to the mourners of many climes and 
of many centuries. Before these last rites, 
we pause to think what sort of a man was 
this whom we so love and honor, whom we 
so lament, whose death, in one aspect, seems . 
so premature; in another, crowned with 
the best that earth can give. 
* An address before the officers and students of the 
Johns Hopkins University, assembled before the 
funeral, April 18, 1901. 
