No. 3, October, 1921] UNCLASSIFIED PUBLICATIONS 271 



1668. Johnson, Maxwell O., and Kim A. Ching. Report of the Chemical Division. 

 Hawaii Agric. Exp. Sta. Rept. 1919 : 40-44. 1920. — A progress report on fertilizer experiments 

 with bananas and pineapples is presented. In spraying pineapples on manganese soil an 

 application of as much as 3,000 pounds of iron sulphate to the acre was unsuccessful in pre- 

 venting chlorosis, while considerably less than 50 pounds per acre applied to the pineapple 

 leaves promptly checked the chlorosis. — J. M. Westgate. 



1669. Mahchand, B. de C. The soils of Natal and the Transvaal. II. The soils of the 

 Transvaal. South African Jour. Indust. 4: 181-187. 1921. 



1670. IMaschhatjpt, J. G. Onderzoek naar de oplosbaarheid in met koolsuur verzadigd 

 water van het in Thomasphosphaat en enkele andere phosphaten aanuezige phosphorzuur. 

 [Investigation on the solubility of the acid phosphate contained in Thomas slag and other phos- 

 phates in carbon dioxide saturated water.] Verslag. Landbouwk. Onderzoek. Rijkslandbouw- 

 proefsta. 23 : 57-S4. 1919. 



1671. Pate, W. F. II. Results of Phos-pho-germ, experiments conducted during 1919- 

 1920. Bull. North Carolina Dept. Agric. 1921: 14-16. May, 1921.— Tests with rye, corn, 

 and cotton show that the use of Phos-pho-germ gives little or no increase in crop yields. — 

 F. A. Wolf. 



1672. SuRR, G., and R. Vaile. Some notes on the "dry bag" soils of the foothill districts, 

 Tulare County, California. Monthly Bull. Dept. Agric. California 10: 41-46. 1921. — It is 

 believed that the shrinkage and the resulting cracks and dry-bag structure of certain adobe 

 soils are mainly due to the presence of large amounts of plastic or colloidal clay-like material, 

 with a corresponding lack of quartz and of the coarse resistant minerals in quantity to act as 

 "fillers" and thus reduce the otherwise inevitable great shrinkage. Experiments indicate 

 that it is highly desirable to permit the soil to crack somewhat after irrigation before practic- 

 ing any tillage. — E. L. Overholser. 



1673. Williams, C. C. The soils of Natal and the Transvaal. I. The composition of Natal 

 soils. South African Jour. Indust. 4: 177-lSl. 1921. 



TAXONOMY OF VASCULAR PLANTS 



J. M. Greenman, Editor 

 E. B. Patson, Assistant Editor 



(See in this issue Entries 1145, 1277, 1311, 1486, 1487, 1496, 1503, 1603) 



MISCELLANEOUS, UNCLASSIFIED PUBLICATIONS 



B. E. Livingston, Editor 

 S. F. Trelease, Assistant Editor 



1674. AxoNTMOTJS. Commission internationale pour I'exploration scientifique de la mer 

 Mediterranee. Conference de Madrid, 17-20 Nov., 1919. [International commission for the 

 scientific exploration of the Mediterranean Sea. Conference in Madrid, Nov. 17-20, 1919.] 

 Commission Internat. Exploration Sci. Mer Mediterranee Bull. 1. 24 p. 1920. — A meeting 

 was called of delegates from the countries bordering on the Mediterranean, with a view to 

 organizing for a scientific study of that sea. The organization comprises a central bureau to 

 coordinate the work of the stations in each country. The publication of the results will be 

 largely in the hands of the central bureau, of which the Prince of Monaco is the president. 

 Publication will be in English, Spanish, French, Greek, and Italian. Memoirs on ocean- 

 ography are contemplated, and an atlas of the flora and fauna of the ^Mediterranean will be 

 begun with the edible animals. The stations are to have uniform recording instruments, 



