Names counted twice, students graduating in two different years

Bachelors of Science

Masters of Science, not included in the above

51 12 126 3,392*

16

3,376**

* Deducting names counted twice (students graduating in two courses).

The Society of Arts.

To the President of the Massachusetts Institute of Technology:

Sir,-On behalf of the Executive Committee I have the honor to present the annual report of the Society of Arts for the year ending May 11th, 1905.

During the past year the Society of Arts has held meetings as provided by the by-laws, the first having been on October 13, 1904. These meetings have been well attended, thus providing evidence of the position of the Society as a factor in the dissemination of scientific information to the public. The average attendance was one hundred and twenty-five. The following papers have been read:

Geology as an Experimental Science, by Professor Thomas A. Jaggar, Jr.

A Practical Color System Based upon Photometric Measurements, by Mr. Albert H. Munsell.

Sanitary Plumbing and our Plumbing Laws, with Suggestions for their Revision and Simplification, by Mr. J. Pickering Putnam.

On Manila and the Philippines as they are To-day, by Mr. Desmond Fitzgerald, C.E.

Mont Pelée and the Eruptions of 1902; the Growth of the Wonderful Spine, by Mr. Edmund Otis Hovey.

The Evolution and Improvement of Domestic Plants, by Dr. H. J. Webber.

The Orientation of Buildings; or the Planning of Buildings and Streets with Regard to Light, by Mr. William Atkinson.

The Hookworm Disease: a New and Important Parasitic Disease of Man, by Dr. Charles Wardell Stiles.

Purification of Public Water Supplies in the Middle West, by Erastus G. Smith, Ph.D.

Wireless Telegraphy, by Mr. John Stone Stone.

The Abolition of Grade Crossings in Chicago by Track Elevation, by Mr. Charles B. Breed.

The Physiography and Geography of Hawaii, by Professor George H. Barton.

Storage Batteries, by Mr. Philip W. Davis.

The Work of the Massachusetts Railroad Commission, by Mr. James F. Jackson.

Of the foregoing several were of special scientific importance, and awakened much interest, notably those by Messrs. Munsell, Putnam, Webber, Stiles, and Smith; and the papers by the two first-named gentlemen have appeared in an expanded form in the Technology Quarterly.

The membership in the Society has remained practically constant, numbering three hundred and sixty-two.

The Technology Quarterly, under the editorship of Dr. Bigelow, has appeared at the regular intervals, and has contained the usual abstract of the Proceedings of the Society of Arts, together with such of the papers read before the Society as had been prepared in manuscript.

Various Departments of the Institute have contributed a number of important papers. Professor W. O. Crosby and Mr. G. F. Loughlin have begun a "Descriptive Catalogue of the Building Stones of Boston and Vicinity," considered in their geological and economical relations, with references to buildings in which they have been used. Professor Noyes has contributed a second part to his "System of Qualitative Analysis," and his address read before the International Congress of Arts and Sciences on the "Physical Properties of Aqueous Salt Solutions in Relation to the Ionic Theory." Other contributions from the Chemical Department have been an article by Professor Gill and Mr. Foster on "White Lead and its Protecting Properties," one by Professor W. H. Walker and Mr. Bourne on the "Hydrolytic Enzyme Contained in Castoroil Seeds," and four contributions from the Laboratory of Sanitary Chemistry. From the Sewage Experiment Station, Mr. Phelps has contributed a paper on the "Interpretation of a Sewage Analysis," and Mr. S. DeM. Gage, of the Experiment Station in Lawrence, has published the results of his studies

on the "Bacteriolysis of Peptones and Nitrates." The activity of the Mining Department is shown by three valuable papers by Professor Hofman and his students.

The book reviews have become a permanent and valuable feature of the Quarterly. During the year fifteen books have been reviewed, chiefly by members of the Institute.

At the forty-third annual meeting, held on May 11, 1905, the following-named gentlemen were elected officers of the Society for the year 1905-06:--

Executive Committee.-George W. Blodgett, Edmund H. Hewins, Charles T. Main, James P. Munroe, and A. Lawrence Rotch.

Secretary. Samuel C. Prescott.

Board of Publication.-W. T. Sedgwick, Dwight Porter, H. E. Clifford, and R. P. Bigelow.

Respectfully submitted,

SAMUEL C. PRESCOTT, Secretary.

Publications.

MECHANICAL ENGINEERING.

G. LANZA-Applied Mechanics. New and revised edition. G. LANZA—Memoir of Professor L. Temire. Proceedings of the American Society for Testing Merica, 2005.

G. LANZA-Repom of Committee on Standard Methods of Tests. Proceedings of the American Society for Testing Moderishi, 1905

E. F. MILER-Practical Instructions on the Use and Care of the Crosby Steam Engine Indian E. F. MiDer, editor. S. H. WOODBRIDGE-Report to Congress on Central Plant for Executive Bing.

MINING ENGINEERING AND METALLURGY.

R. H. RICHARDs-Progress in Gold Mining during 2004The Mineral Industry, Val. XII.

R. H. RICHARDs-Review of the Literature on One-dressing in 1904The Minersi Indarny, VEL XI.

R. H. RICHARDS-Nites in Mining, third-year second Term. Published by the Institute.

H. O. HOFMAN-Recent Improvements in Lead Smelting during you The Mineral Industry, Vol. XIII.

H. O. HOFMAN-Die Darstellung des Zinks and ElectroBytischen Wege. Review. American Chemical Touran, Vol XXXML. p. 508. 1905.

C. E. Locke.—The Copper Mines of Lake Superior Rokard. Review. Technology Quarterly, Vol. XVI 335