for use in an investigation of the nitrofluoresceins; from Leerburger Bros., a sample of their Essence of Maple, one of their finest flavoring extracts; from Dr. Hugo Schweitzer, a set of samples illustrating the preparation of certain new dyestuffs; from Merck & Co., a beautiful set (43) of alkaloidal products for the Chemical Museum.

Of the students who were last year engaged in advanced work in the laboratory, Dr. Wright has gone to Washington and Jefferson College, as professor of chemistry; Mr. Owen is in charge of chemistry and physics at the Potsdam Normal School, at Potsdam, N. Y.; Mr. Dox is one of the chemical staff of the Storrs Agricultural Experiment Station, at Storrs, Conn.; Mr. Hoffman has gone to Berlin, for a year's study and research; and Mr. Renshaw, after serving during the summer as chemist for the Pine Products Co., has returned to Columbia to continue his investigations on 4-amino-o-phthalic acid.

Of the new research workers, one comes from the chemical staff of the Rose Polytechnic Institute, and one from that of Smith College; another is teaching chemistry at the De Witt Clinton High School, while a fourth occupies a similar position at the Mount Vernon High School. The total number of students in the laboratory is larger than ever before.

During the winter many papers were presented before the N. Y. Section of the American Chemical Society. At the thirty-second general meeting of the American Chemical Society, held at Buffalo, June 22-24, Professor Bogert delivered an address upon "The Classification of Carbon Compounds." He was also the Chairman of the Section of Organic Chemistry, before which he presented nine papers, embodying the results obtained in investigations recently conducted in the Organic Laboratory. These researches resulted in the discovery of nearly one hundred new compounds, among which the naphtotetrazines are especially worthy of mention, as they add an entirely new group of compounds to organic chemistry.

It has not been possible as yet to publish all the papers presented during the past year, but the following publications have appeared from the laboratory since the last report to the QUARTERLY:

I. "Review of American Chemical Research." By M. T. Bogert. Jour. Am. Chem. Soc, XXVI., R. 420-425 (Oct.), 449-456 (Nov.), 486-488 (Dec.); XXVII., R. 24-35 (Jan.), 89-95 (Feb.), 132-150 (Mar.), 220-225 (April), 266-272 (May), 340-343 (June), 402-414 (July), 470-479 (Aug.), 510-516 (Sept.), 562-565 (Oct.).

2. Review of Lassar-Cohn's "Application of Some General Reactions to Investigations in Organic Chemistry" (translation by J. Bishop Tingle). By M. T. Bogert. Jour. Am. Chem. Soc., XXVII., 83-84 (Jan.).

3. Review of Schreiner's "The Sesquiterpenes.' By M. T. Bogert. Jour. Am. Chem. Soc., XXVII., 638-639 (May).

4. A card index stock list for use in university departments of organic emistry. By M. T. Bogert. Science, N. S., XXI., 750-752 (May). ch5. "Tre Synthesis of 5-nitro-4-ketodihydroquinazolines from 6-nitro2-aminobenzoic Acid, 6-nitro-2-acetylaminobenzoic Acid, and from the Corresponding Nitroacetylanthranil." By M. T. Bogert and V. J. Chambers. Jour. Am. Chem. Soc., XXVII., 649–658 (June).

6. Review of Raphael Meldola's "The Chemical Synthesis of Vital Products, and the Interrelations Between Organic Compounds." By M. T. Bogert. Jour. Am. Chem. Soc., XXVII., 793-795 (June).

7. "The Condensation of Succinylosuccinic Acid Diethyl Ester with Guanidine. A Derivative of 1,3,5,7-naphtotetrazine, a New Heterocycle." By M. T. Bogert and A. W. Dox. Jour. Am. Chem Soc., XXVII., 1127-1140 (Sept.).

8. "Some Acyl Derivatives of Homoanthranilic Nitrile, and the 7methyl-4-ketodihydroquinazolines Prepared Therefrom." By M. T. Bogert and A. Hoffman. Jour. Am. Chem. Soc., XXVII., 1293-1301 (Oct.).

9. "The Condensation of Succinylosuccinic Acid Diethyl Ester with Acetamidine: 2,6-dimethyl-4,8-dihydroxy-1,3,5,7-naphtotetrazine." By M. T. Bogert and A. W. Dox. Jour. Am. Chem. Soc., XXVII., 13021305 (Oct.).

10. The Synthesis of 2-methyl-5-nitro-4-ketodihydroquinazolines from 6-nitroacetanthranil and Primary Amines." By M. T. Bogert and H. A. Seil. Jour. Am. Chem. Soc., XXVII., 1305-1310 (Oct.).

JI. "Some Experiments on the Nitro Derivatives of Fluorescein." By M. T. Bogert and R. G. Wright. Jour. Am. Chem. Soc., XXVII., 13101316 (Oct.).

12. "The Synthesis of 7-nitro-2 alkyl-1-ketodihydroquinazolines from 4 nitroacetanthranilic Acid, and from 4-nitroacetanthranil." By M. T. Bogert and S. H. Steiner. Jour. Am. Chem. Soc., XXVII., 13271331 (Oct).

13. Review of Leffmann and La Wall's "Text-book of Organic Chemistry." By V. J. Chambers. SCHOOL OF MINES QUARTERLY, XXVI., 428 (July).

14. Constitution of Quinine." By B. L Murray. SCHOOL OF MINES QUARTERLY (see this number); also Merck's Report, XIV., 237239 (Aug.), 267-268 (Sept.), 301–302 (Oct.).

Physical Chemistry. The adjunct professorship of phys cal chemistry, which was first filled in 1901, has been raised during the past year to a full professorship.

Mr. C. W. Kanolt (B. S., Columbia, 1902) has just fulfilled the requirements for the degree of doctor of philosophy in physical chemistry which has been conferred upon him, and as Barnard Fellow, is continuing his studies under Professor Nernst at the University of Berlin. Although as yet Mr. Kanolt's dissertation “ The Combination of a Solvent with the Ions" (Contributions from the Havemeyer Laboratories No. 114) has only been published separately; it will shortly appear in a well known journal.

Mr. M. F. Coolbaugh (B. S., Colorado College) received the degree of master of arts last June, his thesis being the result of work upon the electrolytic deposition of alloys. Although Mr. Coolbaugh intended to continue his research for the degree of doctor of philosophy, his acceptance of the professorship of chemistry in the South Dakota School of Mines has prevented his return to Columbia this year. He is at present working there, however, under the direction of Professor Morgan, and expects to return to Columbia at a later time to fulfill all the requirements for the degree of doctor of philosophy.

The third revised and enlarged edition of Professor Morgan's "Elements of Physical Chemistry" has just been published by Messrs. John Wiley & Sons, and is serving as a basis for the lectures in Chemistry 4 and Chemistry 37- Another work by the same author, "Physical

Chemistry for Electrical Engineers" is now in press and will probably appear before Christmas. This book is especially intended for use in Chemistry 37, and is taken up from the purely experimental, i. e., nonhypothetical standpoint. This avoidance of all hypotheses has been advocated for some time by Ostwald, who has written an elementary chemistry from this point of view, but this is the first work attempting to perform a like service in the more advanced branches of chemistry.

Laboratory of Industrial Chemistry. — Many changes have been made in this laboratory since the beginning of the term, owing to the establishment of the new laboratory of electro-chemistry in the basement of Havemeyer Hall.

Room 415 H, formerly occupied by the large electric furnaces, has been changed into a research room, much to the advantage of the whole laboratory, as regards noise and dust, and is at present occupied by Messrs. John F. Thompson and Louis Cohen, studying for Ph.D. degrees under Professor Miller.

Room 420 H, formerly the electromechanical laboratory, has been remodeled and serves as a very convenient laboratory for chemical microscopy, Chemistry 34.

Professor Pellew, who this year is taking personal charge of Chemistry 26, as well as 10, 27 and 34, is assisted by Mr. Glenn H. Pickard, '04, School of Chemistry.

The course in inorganic preparations, Chemistry 26, has been entirely remodeled, and each student after making three or four routine preparations, is required to make at least one preparation of an absolutely chemically pure compound, preferably one which he is likely to meet and have use for in his future work; and, before completing the course, is required to make one or more preparations, requiring both skill and research, of salts of some of the rare elements.

Researches are in progress, or in preparation, upon varnishes, silk analysis, and microchemical analysis.

DEPARTMENT OF CIVIL ENGINEERING.

The department of Civil Engineering has begun the work of the academic year with a highly prosperous Summer School of Surveying at Morris, Conn., in the new buildings which add much to its efficiency and comfort. The remaining two buildings required to complete the entire plant of the school are now in process of construction and will be completed before the end of the autumn.

The removal of the School of Mines into the new mining building has afforded opportunity for a greatly needed development of class room and museum space for the Department of Civil Engineering. These conditions have also made it feasible to install a departmental library containing a large amount of civil engineering plans and documents hitherto necessarily so imperfectly cared for as to be essentially unavailable for any useful purpose. A considerable quantity of both engineering documents and plans. have been added to the department besides a most generous gift of a number of water meters from the National Me er Company. Material additions have also been made to the apparatus of the cement and road materials-testing laboratories. Some substantial developments have also been made in the administration of the practical work of the department.

VOL. XXVII.-6.

Mr. C. E. Morrison has been made assistant in civil engineering in place of Mr. J. A. Coelos, who at the end of last year discontinued his connection with the university to go into active practice. There have been no other changes in the teaching staff.

DEPARTMENT OF ELECTRICAL ENGINEERING.

Mr. Fitzhugh Townsend was appointed instructor, commencing the first of July, having been the tutor in the department for five years.

C. A. Shneider, electrical engineer, 1904, has been appointed, October 23, assistant in the department in charge of the direct current laboratory.

Professor Crocker has been appointed the chairman of the Committee on Standardization of the American Institute of Electrical Engineers, and one of his main efforts will be to rearrange in logical order the National Electric Code now used by all insurance and electrical interests in the installation and manufacture of electrical appliances.

The department is fitting up Room No. 502 Engineering as a fourth year draughting room as an adjunct of the department which has been greatly needed for some years.

There have been received during the summer some field rheostats from Mr. D. J. Burns, electrical engineer, 1900, of the Ward Leonard Electric Company, Bronxville, New York; a complete telautograph apparatus, as a loan from Mr. James Dixon, electrial engineer, 1901, Engineer of the Gray National Telautograph Company; one thousand feet of insulated cable from the safety Insulated Wire & Cable Company through the kindness of graduates in the electrical department, and one electric storage battery cell through the courtesy of the Electric Storage Battery Company of Philadelphia.

Professor George F. Sever was appointed July 1 by the President, as acting-dean of the Faculty of Applied Science, until the selection of a permanent dean. He resigned as secretary of the faculty October 27.

During the summer, the direct and alternating current laboratories have been entirely overhauled and put in excellent operative condition. Some new transformers and supplies have been secured, and an important addition has been gained through the kindness of Mr. G. B. Rosenblatt, electrical engineer, 1902, of a 10,000 volt-testing transformer of 5 K. W. capacity so arranged that any voltage from 2,500 to 10,000 at full capacity of the transformer can be secured.

BOOK REVIEWS.

Pyrite Smelting. Edited by T. A. RICKARD. New York, The Engineering and Mining Journal, 1905, pp. 306. Price, $2.00.

Moning engineers and metallurgists will appreciate this publication in book form of the extended discussion on pyrite smelting, which took shape in numerous articles and letters printed in the Engineering and Mining Journal, from October, 1903, to February, 1905.

The range of the subject matter is indicated by the following ten questions, which were sent out by the editor and elicited the discussion: (1) What types of ore are suited to the process (direct smelting of pyritic ores)? (2) Is hot blast advisable? (3) To what extent can fuel be eliminated? (4) What amount of copper is required for the collection of the precious metals? (5) What percentage of lime is necessary to a clean slag? (6) What percentage of zinc in the charge can be treated profitably? (7) What is the degree of desulphurization attainable? (8) What are the possibilities as to capacity of furnace? (9) What are the limitations of the process? (10) What is the relative economy as compared with rival processes?

Among those who replied to the questions are many prominent members of the profession, and a great deal of valuable information bearing on this increasingly important branch of metallurgy has been made conveniently available in the present volume. The most important single contribution is by Dr. E. D. Peters. It was written in 1904, at the request of Mr. Rickard, after the discussion had been in progress some seven months, and takes the form of a review. First is given a concise tabulation, embodying the gist of the replies received from the other contributors. A marked unanimity of opinion is shown as to most of the points or at least but little actual conflict. Such differences as exist are attributed mainly to variations in the character of ores treated and the conditions under which each writer had gained his experience in pyritic smelting. Dr. Peters then devotes some fifty pages to more detailed comments and comparisons, and finally presents a summary of results. number of papers by other metallurgists follow, which, though not referring specifically to the original questions propounded, contain much useful testimony as to the various phases of the subject. Among the most interesting of these are the papers by Messrs. John Parke Channing and Herbert Lang.

A

The book closes with three chapters on: "Smelting at Mt. Lyell, Tasmania," the material for which was prepared by the members of the staff of the Mt. Lyell Mining and Railway Co.; " Reverberatory Copper Smelting at Anaconda," by E. P. Mathewson, and "The Matting of Ores at Leadville and Robinson, Colorado," by C. H. Doolittle.

It may be noted here that, after some consideration, the editor has adopted the term, "Pyrite Smelting," instead of the older form, "Pyritic Smelting," as being a more accurate designation for the operation of direct smelting of sulphide ores.

R. P.