Febbuaet 19, 1909] 



SCIENCE 



311 



The Vnsaponifiaile Matter in the Oleo-resms of 

 Conifers: Chas. H. Hebtt and W. S. Dickson. 



Acceleration Tests of the Resistance to Corrosion 

 of Iron and Steel: Allebton S. Cushman. 



The Changes in Crude Petroleum Effected by Dif- 

 fusion through Clay: David W. Day. 



Further Remarks on Vanadium, and its Estima- 

 tion: Geobqe Auoht. 



Iron, from a Chemical and Commercial Stand- 

 point: Paul N. Clancy. 



An Unusual Incrustation on Generator Coils: 

 C. H. Ehbenteld. 



Principles Underlying Efficient Grinding and Sep- 

 arating: W. H. Walkee. 



The Purchase of Material on Specification: H. J. 

 Skinnee. 



■Som^ Industrial Applications of the Ives Colori- 

 meter: F. A. Olmstead. 



Factors determining the Efficiency of Trolley 

 Wires: C. F. Woods. 



The Iodine Number and some other Values for 

 China Wood Oil: E. W. Boughton. 



Accuracy in Sampling Coal: B. G. Bailey. 



The Storage of Beef at Temperatures above the 

 Freezing Point: W. D. Eichaedson. 



Observations on the Freezing Out of Colloids with 

 Reference to Frozen Meats: W. D. Eichaedson. 



Observation's on Certain Stains applied to Frozen 

 and Unfrozen Muscular Tissue: W. D. Eich- 

 aedson. 



Frozen Poultry: W. D. Eichaedson. 



■Observations on the Best Methods of Cold Storage: 

 W. D. Eichaedson. 



The Commercial Manufacture of Amorphous Cal- 

 cium Phosphide: Chaeles E. Muneoe. 



The Distribution of Nitrate of Soda in the United 

 States: Chaeles E. Munboe. 



Standard Methods for Determining and Recording 

 the Relative Permanency or Resistance of Color- 

 ing Matter to the Common Color Destroying 

 Agencies: L. A. Olnet. 



Standardization of Methods for Commercial An- 

 alysis of Fats, Greases, etc., and Adoption of 

 Rational Nomenclature for Same: A. G. Sttt.l- 



WBIX. 



Ouayule and Guayule Rubber: Theodoee Whit- 



TELSEY. 



Lubrication and Lubricants: 0. F. Mabeey. 



FEETILIZEB CHEMISTEY SECTION 



F. B. Carpenter, chairman 

 Some Points of Interest in Connection xoith Pres- 

 ent Fertilizer Laws and Proposed Fertilizer 

 Legislation: Aethue Lowenstein. 

 Tlie author first indicates the points which are 



at present uniform in the various state fertilizer 

 laws. He next points out in detail the lack of 

 uniformity in these laws, and states that this is 

 due not so much to lack of uniformity in the basic 

 principles of the laws, but rather in the elabora- 

 tion of the principles, and the mode of expression 

 of the details. Quotations are made from the 1907 

 report of the Committee on Fertilizer Legislation, 

 of the A. 0. A. C, in which this committee favors 

 national fertilizer legislation, after certain speci- 

 fied difBculties have been overcome. The point 

 next discussed is, if a national law were enacted, 

 whether it would bring about the harmony and 

 imiformity desired or not. The author points out 

 why, in his opinion, it would not. He proposes a 

 uniform state fertilizer law and recommends that 

 a committee be selected by the Division of Fertil- 

 izer Chemists of the American Chemical Society 

 to confer with similar committees from the A. O. 

 A. C, National Fertilizer Association and the 

 Association of Agricultural Colleges and Experi- 

 ment Stations, with a view to drafting a uniform 

 state fertilizer bill — all parties concerned being 

 represented on this joint committee. Then if a 

 national law is desired or necessary for the con- 

 trol of interstate commerce, work for the adoption 

 and passage by congress of this uniform law. 

 Potash Experiments in Factory Work shovnng 

 Heavy Loss by Official Method and Possible 

 Means of Preventing this Loss: J. E. Beecken- 



BIDQE. 



A brief history of the work of the Association 

 of Ofacial Agricultural Chemists on potash during 

 recent years, showing loss of potash by official 

 method. 



Methods used to find this lost potash explained 

 with results on thirteen samples. Some methods 

 used: 



No. 3. (a) Same as Carpenter method, except 

 1 per cent, citric acid solution was used for sol- 

 vent instead of 5 c.c. HCl in 300 c.c. water. 



No. 11. Washed 2 grams on 11 cm. filter with 

 small portion of hot water into a 200 c.c. fiask to 

 about 175 c.c, when no chlorid or soluble sulphate 

 should be left in residue on filter. Add .6 gram 

 citric acid to flask, heat contents of flask to boil- 

 ing, add ammonia and ammonium oxalate and 

 proceed as in official method. 



No. 12. Same as No. 11, only use 3 c.c. HCl in 

 place of .6 gram citric acid. 



No. 13. Same as No. 11, only do not add any 

 citric acid. 



Abstracts have not been received for the follow- 

 ing papers: 



