Cultures of chicken chol era virus kept for some time became less active. 李贝.西洋科学史.
India, a galaxy of contrasted races, religions, and cultures, Dravidian, Mongolian, and Aryan, became a nation. 赫伯特·乔治·威尔斯.世界史纲.
Dr. Koch, who had srved in the Franco-Prussian War, succeeded in 1876 in obtaining pure cultures of this bacillus and in defining its relation to the dis ease. 李贝.西洋科学史.
Water cultures of buckwheat: 1, with all the food elements; 2, without potash; 3, without nitrates. 伯莎M.克拉克.科学通论.