English: THE CHANGES IN SEA WATER AND THEIR INFLUENCES UPON MARIEN ANIMALS : II. The Influences of Natural Salts upon the Germ Cells of Sea-Urchin
Japanese: 海水の變化と其の海產動物に及ぼす影響に就て : 二、「ウニ」の生殖細胞に反ぼす中性塩類の影響