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water bath a t nearly boiling temperature, for about one hour, or until the flocculent precipitate has become crystalline and the liquid clear. Cool and filter through a Gooch crucible, washing first with about I O O cc. of I per cent. solution diammonium hydrogen phosphate, then with about 500 cc. of water, followed b y a little alcohol, and lastly ether. Make the washing a continuous operation, not letting the liquid get entirely off the precipitate until the end. Dry a t I O O ~ - - I Z O ~and weigh as NHJnPO,. If desired, this may be ignited in the usual way and weighed as Zn,P,O,. Mr. Murray writes that “this method has been tried on zinc sulphocarbolate, valerate, acetate, stearate, oxide, etc., with promising results. The acetate and sulphocarbcrlate require no special treatment. The valerate dissolves upon addition of the ammonia. The stearate is freed from fatty acids b y hydrochloric acid, filtration and washing before the zinc can be precipitated. The oxide must, of course, be dissolved in hydrochloric acid. Judging from present experiences, the method may be expected t o give no trouble with the bromide, chloride, iodide, carbonate and sulphate of zinc, nor with the zinc metallic.” This process, while i t has not been put to actual trial a t this time on a special sample by the Committee, yet is perhaps the most reliable and efficient method we can find for the estimation of zinc and can be readily applied t o all of the various compounds in the U. S. P. with some little variation. Following the zinc salts, the Committee expects to take u p such substances as are official in the Pharmacopoeia having the definite purity requirements mithout a n assay process and go over them in alphabetical order. The Committee is desirous a t this time of receiving any further suggestions or instructions from the section as a whole and will be pleased a t any time to have their attention directed to work such as will be of interest or aid t o them. Committee on Quantitative Methods, FRANK 0. TAYLOR, Chairman. R E P O R T UPON THE T H I R D NATIONAL CONSERVATION CONGRESS. Sept. ZSth, 26th and 27th, 1911
The first session of the Congress opened a t ten o’clock Monday morning, Sept. zgth, a t Convention Hall, Kansas City. After a prayer b y the Roman Catholic Bishop of Kansas City, addresses of welcome were given b y Mayor Brown, of the City, Mr. J. C. Lester, of the Kansas City Commercial Club, and Gov. Hadley, of Missouri. Responses were made b y Dr. Henry Wallace, President of the Congress, and Hon. J. B. White, Chairman of the Executive Committee. Dr. Wallace pointed out how the new conditions which gradually arose in this country caused a flow of population from the rural ta the urban districts. He suggested remedies for this, namely, the improvement of agricultural codditions, and this was the subject
Nov., 191I
that was t o receive especial consideration in this Congress. Afterannoun cements the session closed. The second session was called t o order a t 2 P.M. After an inbocation the chair appointed committees on resolutions, on nominations, etc. He then called for reports from state conservation commissions and other organizations concerned in conservation. The chief address of the afternoon was given by Hon. Benjamin Lindsay, Judge of the Juvenile Court of Denver, on the Couvztry Child versus the City Child. The Judge held there was no essential difference between the two but that surroundings, manner of life, etc., of the country boy were conducive to a better development physically and morally than in the case of the city boy. He was not as sanguine as Dr. Wallace that the trend of population from the country t o the city can be checked. The third session was called to order a t 8 o’clock. After preliminary addresses by state representatives, Present Taft gave the address of the evening on “ T h e Conservation of the Fertility of the Soil.” The President is optimistic and believes that although our methods of agriculture will have t o be improved, owing to the fact that our population is growing a t a greater rate than the increase in tillable land, we will still be able to feed our own population for many years from our own soil. The Department of Agriculture is doing much and plans to do more, to educate the farmer. With improved methods of farming the profits of the farmer will be more certain. The national and state Departments of Agriculture are working together for the purpose of placing in each country of every state an agricultural expert whose duty i t will be to give instruction to the farmers of the county. The fourth session opened a t I O o’clock, Tuesday, Sept. 26th. After prayer and routine business, reports from state and national organizations were continued. Papers were then read by Prof. P. C. Holden, on Social L i f e on the Farm, by W. A. Beard on Cooperation; and b y H. Quick on The Farmer and the Railroad. Mr. Barrett, who was scheduled t o speak on The Farmers Educational and Cooperative Union of America was prevented from being’ present b y sickness. The fifth session opened a t 2 P.M. After prayer, announcements, routine business and reports of committees, addresses were given by Dr. Frederick B. Mumford, Dean of the University of Missouri, on The Live Stock Fariiz and Soil Fcvtility; by Mrs. Harriet W.Ashby on The Farmer’s W i f e . The sixth session was called to order a t 8 P . M . A paper was read by blrs. .Philip N. Moore on The Dr. Warren H. Wilson made a C o t n ~ n ~ ~ n Club. ity forceful address on The Church in.the Open Country. Then, after a most enthusiastic reception, Dr. Harvey W.Wiley spoke on The Health of the People. Dr. JViley advocated the establishment of a national department of health in Washington, the secretary of which should be a cabinet member. The seventh and eighth sessions were held on Wednesday the 27th inst. The printed program was
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T H E J O U R N A L OF I N D U S T R I A L A N D E N G I N E E R I N G C H E M I S T R Y .
not rigidly adhered t o ; some of the papers scheduled for the afternoon were given in the morning. Hon. Curtis Hill spoke on How Good Roads Help the Farmer, Hon. J . €3. White on Practical Forestry zn Europe and America. A representative of the U. S. Department of Agriculture, IT. J Spillman, spoke in place of Dr. Bradford Knapp, who was absent. He was followed by+Prof. Cyril Hopkins, of the University of Illinois, on Worn-out Soils. This was a comprehensive and forceful address. He considered the chemistry of soil, emphasizing the necessity of using artificial fertilizers, especially ground rock phosphate, limestone and in some cases nitrogenous matter and potash, t o restore worn-out soils. He made a remarkable statement, namely, that most soils contain an abundance of potash and do not require any further addition of this element. He also advocated the use of the Taxi- untreated phosphate rock. Dr. Hopkins urged that the large sums of money used t o reclaim the arid lands of the west could be used to much greater advantage in restoring the fertility of the farms of the country t h a t are located near the centers of population and t h a t receive abundant rainfall. Dr. TV. J. McGee read a paper on The Trend of the Conservatiolz Jdovement. I n the afternoon session the principal address was b y the Hon. TValter L. Fisher, Secretary of the Interior, on the Conservat i o n of the Public Domain. Mr. Fisher advocated the system of renting or leasing the coal lands and water power for a limited number of years and not letting the permanent possession go out of the hands of the people. Addresses were also made by Hon. 11’. B. Hoard on Dairyivtg a&d Soil Fertility; b y Prof. A. N . Ten Eyck, Kansas State Agricultural College, on Proper Methods of Soil C d t i v a t i o n ; by Mr. A. P. Grout on The R a p e of the Soil. The chairman of the Committee on Resolutions then read a long series of recommendations which were adopted unanimously by the Congress. Letters were read from Theodore Roosevelt, and the delegates sent a telegram of greeting t o Gifford Pinchot. At the evening and final session Mr. William Jennings Bryan delivered an address on Phases of Conservation. EDWARD H. KEISER, Delegate, A. C. S
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MEETINGS OF THE CHEMICAL SOCIETIES IN NEW YORK.
At a special meeting of the Chairman and Secretaries of the New York Section of the Americah Chemical Society, the American Electrochemical Society, and the Societv of Chemical Industrv. held a t the Chemists’ Club on October 3rd, a tentative program was outlined for meetings for the season 1911-1912. Three joint meetings have been arranged which promise t o be of very wide interest. 2
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November ~oth.-Joint meeting under the auspices of American Chemical Society. Subject : Symposium on Fuel Economy. December 8th.-Regular meetihg, American Chemical Society. Award of Nichols Medal. Election of Local Couhcilors. December ~gth.-Annual meeting; the Chemists’ Club. 1912 . January sth.-Regular meeting; American Chemical Society. January I 9th.-Regular meeting ; Society of Chemical Industry. Award of Perkin Medal. February 9th.- Joint meeting ; under the auspices of the American Electrochemical Society. Subject : Research. March 8th.-Regular m e e ~ n ;g American Chemical Society. Election of Officers of the Section. March 2 2nd.-Regular meeting ; Society of Chemical Industry. March 29th.-Regular meeting; American Electrochemical Society. April ~gth.--Joint meeting; under the auspices of the Society of Chemical Industry. Subject: Alkali. May 10th.-Regular meeting ; American Chemical Society. May z4th.-Last regular meeting; Society of @hemical Industry. June 7th.-Last regular meeting; American Chemical Society.
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PROGRAM O F ’FIRST JOINT MEETING OF NEW YORK CHEMICAL SOCIETIES.
The first joint meeting of the New York Sections of the American Chemical Society, American Electrochemical Society and Society of Chemical Industry, is scheduled for November Ioth, a t the Chemists’ Club, and the program will be a general symposium on Fuel Economy. PROGRAM. “Fuel Gasification for Industrial Purposes.” By Professor Charles E. Lucke. “A Continuous Carbon Dioxide and Temperature Recorder and I t s Application to Combustion Efficiency.” By Edward A. Uehling. “Is Peat an Important Fuel?” By Charles F. McKenna. “Deterioration and the Fire Risk in the Storage of By H. c*Porter. “The Distribution of Heat in Boiler Plant Operation.,, By Perry c ~ S o m eAttempts at Economy in Making By J. W. Loveland.
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PROGRAM. Octobe; 6th.--American Chemical Society. York Section. October 20th.-Society of Chemical Industry. York Section.
Sew New
NATIONAL ACADEMY OF SCIENCE.
By invitation of the trustees of the New Tork Public Library the autumn meeting of the National Academy of Sciences will be held in its new building, Forty-second Street and Fifth Avenue, beginning on Tuesday, November 2 1st. The first business meeting of the Academy will be held on Tuesday morning a t eleven o’clock and the first open scientific session will be a t two o’clock in the afternoon.
