페이지 이미지
PDF
ePub

fissures, from which flickering flames were southwards to Sergiopol, where he was deleaping, showed that the lava was red hot a tained three weeks owing to the southern road very short distance below the surface. The being blocked by snow. He afterwards went height he found to be 19,600 feet. The party remained at the top for twenty-six consecutive hours, sleeping about 130 feet below the loftiest point. At first they had felt the effects of the low pressure of the atmosphere, and again, as at Chimborazo, took chlorate of potash with good effect. All signs of mountain sickness had passed away before they commenced back. the descent, and did not recur during the journey. Nearly five months later Mr.

to Kulja for a short time, and he also made some excursions to Issyk-kul and other places of interest. In the course of the discussion which followed the paper, Mr. Ashton Dilke, the only other Englishman who has visited Kulja, gave an interesting account of his experiences in that region a few years

Whymper returned to Chimborazo, and from M. TARRY, a member of the French Com

a second reading of the barometer at 14.028 inches, with a temperature of 15 degrees Fahrenheit, he made the height 20,489 feet, the mean of the two readings giving 20,517 feet. While on the side of Chimborazo he witnessed a magnificent eruption of Cotopaxi, ashes rising in a column 20,000 feet above the rim of the crater and then spreading over an area of many miles. Prof. Bonney had submitted the ash to microscopic examination, and found that the fineness varied from 4,000 to 25,000 particles to the grain in weight, and from observation of the area over which the ash fell Mr. Whymper calculated that at least two million tons must have been ejected in this one eruption.

the International African Association. In

and the river

mission for Trans-Saharan Communications, is stated to have discovered in the south of Wargla the ruins of a large city called Cedrada, which had been entombed by sands of the desert. This city is placed in the Valley of Wed Mya, and in the vicinity of a number of sources which in former centuries watered thousands of palm trees. Orders have been sent to procure a set of sounding apparatus, and it is expected a large quantity of pure water will be extracted from the earth. M. Tarry published an appeal to the local papers in order to obtain from the Government the foundation of a colony in this remote region.

SAN ANITARY HOUSES.-The Society of Arts propose to award medals for plans showA TELEGRAM was read at a recent meeting of the French Academy of Sciences ing the best sanitary arrangements in houses from M. de Brazza, who has been conducting hibited in the Society's rooms, Adelphi, in built in the metropolis, such plans to be exan exploration in the region of the Ogowe June, 1881, and to be sent in on or before 12th and Congo, West Africa. Quite recently a French station has been founded in the upper for the best sanitary arrangements carried out May, 1881. One silver medal will be awarded course of the former river in connection with and in satisfactory working in a house let out in July last, M. de Brazza informs the Academy is paid. One silver medal for the best sanitary tenements to artisans for which a weekly rental he reached the Congo from this station on the Ogowe, between the river Inpaka Mpania arrangements in actual satisfactory working in a house of the yearly rental of from £40 or Lawson Afrisi." Gaining the favor of King Makoko he pacified the tribes less to about £100 in value. One silver medal on the right bank of the Congo, and peaceful-isfactory working in a house of the yearly rental for the best sanitary arrangements in actual satly descended the river in a canoe. On October 3 he founded the station of Ntamo Ncoma houses must be open to the inspection of the of £200 and upwards to any amount. The on land ceded by King Makoko on the right bank of the Congo. M. de Brazza surveyed be guided by the suggestions of plans for main judges, who, in considering their award, will the route between the Ogowe and Congo; it is twelve marches in length, over a plateau of an under the Public Health Act, 1875. The sewerage, drainage and water supply, made average height of 800 meters. The country houses must have been in actual occupation is healthy, and the population dense and within the last three months, and a certificate peaceful. In November last M. de Brazza arrived at Mdambi Mbongo, the advanced post must be given by the occupiers, on a printed of Mr. Stanley, whom he met, and with whom form, stating the satisfactory working of all he reached the latter's headquarters at Vivi on November 12. If the new station can be maintained and victualed, it is no doubt well chosen as a starting point for further discovery, for both north and south of it, there are large regions of which he knew nothing.

A the of last, Mr. E. Delmar Mor

T the meeting of the Geographical Socie

gan gave some account of his journey last year to Semiretchia and the town of Kulja. Being unable to make use of the more southern line of communications, Mr. Morgan traveled by the northern post road from Orenburg to Troitsk and Petropaulofsk, and thence to Omsk and Semipalatinsk. He then struck

the sanitary arrangements, such form to be obtained at the Society of Arts. The houses may be old, fitted with modern sanitary arrangements, or may be new. They must be Works. The sanitary arrangements must inwithin the metropolitan area of the Board of clude the conditions for good water supply, drainage, warming and ventilation of the

house, and precautions taken against frost.

The medals may be awarded to the occupiers of the houses or the lessees, or the owners. The plans must consist of a ground plan and sections, to the scale of not less than 1 inch to 5 feet; details not less than 1 inch to the foot. The plans may be accompanied by specifications.

One Volume, 8vo., Cloth Extra. 169 Pages. 96 Illustrations. $2.50.

[blocks in formation]

CHAPTER IV. Incandescent Lamps.

CHAPTER V. Carbons for Incandescent Lighting.

CHAPTER VI and VII. New Forms of Lamps.

CHAPTER VIII. Preservation of Incandescent Carbons.

CHAPTER IX. Division of Current and Light.

CHAPTER X. Regulators and Switches.

CHAPTER XI. General Distribution.

CHAPTER XII. Commercial Aspects.

D. VAN NOSTRAND, Publisher,

23 Murray and 27 Warren Streets, New York.

Copies sent by mail, post paid, on receipt of price.

VALUABLE WORKS ON CHEMISTRY.

PLATTNER'S BLOW-PIPE ANALYSIS. | PRESCOTT'S PROXIMATE ORGANIC

Third Edition. Revised. 568 pages. 8vo. Cloth. $5.00. PLATTNER'S MANUAL OF QUALItative and QUANTITATIVE ANALYSIS WITH THE BLOW-PIPE. From the last German edition, revised and enlarged. By Prof, TH. RICHTER, of the Royal Saxon Mining Academy. Translated by Professor H. B. CORNWALL; assisted by JOHN H. CASWELL. With eighty-seven wood-cuts and Lithographic Plate.

NAQUET'S LEGAL CHEMISTRY.

Illustrated. 12mo. Cloth. $2.00. LEGAL CHEMISTRY. A Guide to the Detection of Poissons, Falsification of Writings, Adulteration of Alimentary and Pharmaceutical Substances; Analysis of Ashes, and Examination of Hair, Coins, Fire-arms, and Stains, as Applied to Chemical Jurisprudence. For the Use of Chemists, Physicians, Lawyers, Pharmacists, and Experts. Translated, with additions, including a list of Books and Memoirs on Toxicology, etc., from the French of A. NAQUET. By J. P. BATTERSHALL, Ph.D., with a Preface by C. F. CHANDLER, Ph.D., M.D., LL.D.

PLYMPTON'S BLOW-PIPE ANALYSIS. 12mo. Cloth. $1.50.

THE BLOW-PIPE: A Guide to its Use in the Determination of Salts and Minerals. Compiled from various sources, by GEORGE W. PLYMPTON, C.E., A.M., Professor of Physical Science in the Polytechnic Institute, Brooklyn, N. Y.

PYNCHON'S CHEMICAL PHYSICS. New Edition. Revised and enlarged. Crown 8vo. Cloth. $3.00. INTRODUCTION TO CHEMICAL PHYSICS: Designed for the Use of Academies, Colleges, and High Schools. Illustrated with numerous engravings, and containing copi ous experiments, with directions for preparing them. By THOMAS RUGGLES PYNCHON, M.A., President of Trinity College, Hartford.

ELIOT AND STORER'S QUALITA

TIVE CHEMICAL ANALYSIS.
New Edition. Revised. 12mo. Illustrated. Cloth. $1.59.
A COMPENDIOUS MANUAL OF QUALITATIVE CHEMICAL
ANALYSIS. By CHARLES W. ELIOT and FRANK H.
STORER. Revised, with the co-operation of the Au-
thors, by WILLIAM RIPLEY NICHOLS, Professor of
Chemistry in the Massachusetts Institute of Technol-

ogy.

[blocks in formation]

ANALYSIS.

12mo. Cloth. $1.75.

OUTLINES OF PROXIMATE ORGANIC ANALYSIS, for the Identification, Separation, and Quantitative Determin. ation of the more commonly occurring Organic Compounds. By ALBERT B. PRESCOTT, Professor of Organic and Applied Chemistry in the University of of Michigan.

PRESCOTT'S ALCOHOLIC LIQUORS. 12mo. Cloth. $1.50.

CHEMICAL EXAMINATION OF ALCOHOLIC LIQUORS. A
manual of the Constituents of the Distilled Spirits and
Fermented Liquors of Commerce, and their Qualita-
tive and Quantitative Determinations. By ALBERT B.
PRESCOTT, Professor of Organic and Applied Chemis-
try in the University of Michigan.

PRESCOTT'S & DOUGLAS' QUALI-
TATIVE CHEMICAL ANALYSIS.
Third Edition. Revised. 8vo. Cloth. $3.50.
A Guide in the Practical Study of Chemistry and in the
Work of Analysis.

[blocks in formation]

AN INTRODUCTION TO QUALITATIVE CHEMICAL ANALYSIS.
By F. BEILSTEIN. Third edition, translated by I. J.
OSBUN.

CALDWELL & BRENEMAN'S CHEMI-
CAL PRACTICE.

8vo. Cloth. 188 pages. Illustrated. New and Enlarged
edition. $1.50.

MANUAL OF INTRODUCTORY CHEMICAL PRACTICE, for the
Use of Students in Colleges and Normal and High
Schools. By Prof. GEO. C. CALDWELL and A. A. BRENE
MAN, of Cornell University. Second edition, revised
and corrected.

[blocks in formation]

D. VAN NOSTRAND, Publisher,

23 Murray and 27 Warren Streets, New York.

Copies sent by mail, post-paid, on receipt of price.

[blocks in formation]
[blocks in formation]

Journal of the Franklin Institute,

DEVOTED TO SCIENCE AND THE MECHANIC ARTS.

ESTABLISHED IN 1826.

The only Technological Journal published in the United States, without private pecuniary interest.

Its object is to encourage original research, and disseminate useful knowledge in all matters relating to the practical application of science, but more especially to engineering and the mechanical arts.

The JOURNAL is issued in monthly numbers, of eighty pages each, largely illustrated, forming two volumes annually. The number for December, 1880, completes the One Hundred and Tenth volume.

Hereafter its value will be greatly increased by its containing more original matter: by more attention and space being given to the publication of articles condensed from foreign and domestic scientific and technical periodicals, with ample references.

More space will also be given to the transactions of the Institute, thus rendering it of special interest to members.

[blocks in formation]

Communications for the Journal, and business letters, should be addressed to the Secretary of the Franklin Institute, Philadelphia, Pa.

« 이전계속 »