354 Scientific Intelligence. 
P. T. AUSTEN: Chemistry as a liberal education. 
H. W. WILEY: Quantitative exercises in general chemistry. Record of 
progress in agricultural chemistry. 
EK. E. Smita: Remarks on a specific form of cell metabolism. 
K. A. DE SCHWEINITZ: Products of parthogenic bacteria. 
W. O. ATWATER: Some points connected with the chemistry and physics of 
metabolism. Chemistry of foods and nutrition. 
MILTON WHITNEY: Recent progress in physical analysis of soils. 
Section D. Mechanical Science and Engineering. 
H. N. OgpEN: The economics of engineering public works. 
De Voutson Woon: Mathematical theory of the windmill. 
J. J. FuATHER: Experiments on the flow of steam, and comparison of the 
results with Napier’s formula. 
MANSFIELD MERRIMAN: On partially continuous drawbridge trusses, with a 
method of deducing formulas for the reactions. 
H. 8. JAcosy: On the design of fish-plate timber joints. 
Wm. S. Rogers: The perfect screw problem; illustrated by a combined rul- 
ing engine and comparator in automatic operation. 
Section EH. Geology and Geography. 
C. R. VAN Hise: The relations of primary and secondary structures in rocks. 
B. K. Emerson: The Archzean and Cambrian rocks of the Green Mountain 
range in Southern Massachusetts. 
C. H. HitcaHcock: Gotham’s cave; or fractured rocks in Northern Vermont. 
ARTHUR HOLLICK: Recent discovery of the occurrence of marine Cretaceous 
strata on Long Island. 
J. W. SPENCER: Geological canals between the Atlantic and Pacific Oceans. 
Recent elevation of New England. 
H. C. Hovey: Geological notes on the Isles of Shoals. 
W. H. C. PyncHon: Great falls of the Mohawk at Cohoes, N. Y. 
ANDREW G. WiLson: Subdivision of the Upper Silurian in Northeast Iowa. 
J. P. Smita: Supplementary notes on the Metamorphic series of the Shasta 
region of California. 
WARREN UPHAM: View of the ice age as two epochs, the Glacial and Cham- 
plain. 
G. F. WricHt: Glacial phenomena between Lake Champlain and Lake George 
and the Hudson. 
G. W. Hotuey: Whirlpool of Niagara. 
C. R. Eastman: Distribution of sharks in the Cretaceous. 
A. Hyatt: Terminology proposed for description of Pelecypoda. 
W. M. Davis: The equatorial counter currents. 
H. L. FarrouiLp: Interesting features in the surface geology of the Genesee 
region. 
GARDNER G. HUBBARD: Japan. 
SecTION F. Zoology. 
J.-B. Smita: The evolution of the insect mouthpiece. 
C. L. Maruatt: The mouthpiece of insects with special reference to the 
Diptera and Hemiptera. 
CHARLES S. Minot: On the olfactory lobes. Rejuvenation and heredity. 
L. O. HowarpD: Notes on fleas, mosquitoes, and the horseflies. 
O. F. Cook: On a revision of the North American Craspedosomatide. A 
new character in the Colobognatha, with drawings of Siphonotus. Steinmiiulus 
as an ordinal type. 
EK. D. Cope: On the visceral anatomy of the Lacertilea. The affinities of the 
Pythonomorph reptiles. 
Gro. DimmMock: Characters which are useful in raising larve of Sphingide. 
J. A. LINTNER: On the girdling of elm twigs by the larve of Orgyia cucos- 
tigma, and its results. 
CHARLES W. Har@itt: Notes upon the Eupaguride. 
J. H. Prruspury; A new wheel for color mixing in tests for color vision. 
Some further results of investigation of areas of color vision in the . human 
retina. 
