664 ANNUAL REPORTS OF DEPARTMENT OF AGRICULTURE. 



ruhlication.s issued diiriiu/ the year ended June 30, I'JIO, etc. — Continued. 



BUREAU OF CHEMISTRY— Continued. 



Ni:\v I'l Bi.iCATioNS — Continued. 



Bullet in ft — Continued. Copies. 



2so. VA2. rrocecdiuirs of the Tv^*enty-sixth Annual Convention, As- 

 sociation of Official Agricultural Chemists, Denver, Colo., Aug. 

 L'O-l's. 1<>10. EditcKl by II. W. Wiley, Secretary of the Associa- 

 tion, 218 pp. 25 cts. June 22 1,000 



Cireulars: 



Xo. 44. Apparatus for Use in the Determination of Volatile Acids 

 in Wines and Vinegar. II. C. Gore. 2 pp. Aug. 17, 800; Nov. 

 20, 500 1, 300 



No. 45. A New Method f(U" ^Measuring the Electrolytic Dissociation 



of Water. C. S. Hudson. 2 pp. Sept. 3, 2.500; Jan. G, 500 3,000 



No. 40. The Occurrence of Pinene in I.emon Oil. E. M. C'hace. 24 



pp. Oct. 30. 2.300; Jan. 10. 500 2,800 



No. 47. The Hydrolysis of Salicin by the Enzym Emulsin. C. S. 



Hudson and H. S. Paine. 8 pp. Nov. 8_ 2, 200 



No. 48. The Cold Storage of Apple Cider. H. C. Gore. 13 pp. 



Jan. 29 3, 500 



No. 49. The Relation Between the Chemical Constitution and the 

 Optical notation Power of the Sugar Lactones. C. S. Hudson. 

 8 pp. Jan. 24 2,100 



No. 50. The Quantitative Determination of Cane Sugar by the Use 



of Invertase. C. S. Hudson. 8 pp. Feb. 3 2, 000 



No. 51. The Value of Peaches as Vinegar Stock. H. C. Gore. 7 



pp. Feb. 2G 2,500 



No. 52. Extracts from Proceedings of the Association of Official 

 Agricultural Chemists, 1909. Report on the Recommendations of 

 Referees. J.K.Haywood. 32 pp. Mar. 3 2,700 



No. 53. Suggested Modification of the Winton Lead Number, espe- 

 cially as Applied to Mixtures of Maple and Cane Sirups. S. M. 

 Ross. 9 pp. Mar. 9 2,000 



No. 54. Analysis of Canned Peas and Beans, showing Composition 



of Different Grades. W. L. Dubois. 9 pp. Mar. 28 2, 500 



No. 55. Influence of Acids and Alkalis on the Activity of Invertase. 



C. S. Hudson and H. S. Paine. 7 pp. Apr. 22 2,200 



No. 56. The Determination of Total Sulphur in Organic Matter. 



Herman Schreiber. 9 pp. June 15 2, 500 



No. 57. Experiments on the Preparation of Sugared Dried Pine- 

 apples. H. C. Gore. 8 pp. May 16 2, 500 



No. 59. The Destruction of the Enzym Invertase by Acids, Alkalis, 



and Hot Water. C. S. Hudson and H. S. Paine. 5 pp. June 24_ 2, 500 

 Annual Report: 



Report of the Chemist for 1909. H. W. Wiley. (From An. Repts. 



of Dept. 1909.) 61 pp. Dec. 9, 1,500; Apr. 12, 500 2,000 



Yearbook, Extracts and Separates: 



No. 479. Suitable Paper for Permanent Records. F. P. Veitch. 



(From Ybk. 1908.) 10 pp. July 17 1,000 



No. 485. The Manufacture of Flavoring Extracts. E. M. Chace. 



( From Ybk. 1908. ) 2 pp. Aug. 17. 800 ; Nov. 6. 500 : Feb. 3, 1.000_ 2, 300 



No. 489. Plant Food Removed from Growing Plants by Rain or 

 Dew. J. A. LeClerc and J. F. Breazeale. (From Ybk. 1908.) 

 16 pp. July 27 500 



The Effect of Distillation in Different Types of Stills. L. M. Tol- 



man. (From Bui. 130, Bu. of Chem.) 7 pp. Jan. 20 100 



Farmers' Bulletins: 



No. 377. Harmfulness of Headache Mixtures. L. F. Kebler, F. P. 

 Morgan, and Philip Rupp. 16 pp. Sept. 28, 10,000; Dec. 10, 

 15.000; Mar. 8, 15.000; Apr. 4. 15.000 55,000 



No. 393. Habit-forming Agents : Their Indiscriminate Sale and Use 

 a Menace to the Public Welfare. L. F. Kebler. 19 pp. Apr. 29, 

 20,000; May 31, 30,000 50,000 



