To study gas hydrate,Germany has developed foremost projects from geology,geophysics,geochemistry and biology of the hydrate,and particularly put emphasis on in-situ and high-resolution observation to study micro-geo-bio-chemistry.
Through such aspects as the status, the mode of thinking and practical sports, teaching, ideology and value, the valuable multi-dimensional concept is produced to increase the development of school's P.E theory and practice.
A new method for the biological assay of vegetable purgatives based on the numbers of wet faeces excreted by groups of mice after dosing is described. The relation of the number of wet faeces per group of mice to the logarithm of the dose was found to be linear. A cage has been specially designed for this assay and it has been found advantageous to incorporate a definite proportion of water in the diet during test. 40 mice divided equally into 4 groups were used in each assay. 2 groups received the standa...
Coilia mystus (L.) is a small fish of economic importance, belonging to the Family Engraulidae. It occurs abundantly along the coast of Amoy and vicinity. The present investigation was undertaken with the chief object of finding out the compostion of food and its seasonal variation. A total of 612 stomachs were examined; of these, only 22 stomachs were found to be empty. The following are the results of the investigation:(1) Coilia mystus feeds chiefly upon planktonic Crustacea, of which Copepoda is, by far...
A project for studying the seasonal variation of the planktonic organisms in the near-shore water of Tsingtao was started in March of 1953. Both quali- tative and quantitative samples have been collected since then at weekly inter- vals as regularly as possible. The present paper is a preliminary report of the results obtained for the first three years (March 1953 to February 1956). Spe- cial attention was paid to the seasonal variation in composition and number of planktonic diatoms. It was found that the...