English: ON CELL ABNORMALITIES DURING THE SPERMATOGEN ESIS : I. Giant Spermatocyte and Cell-Degeneration in a Stone fly, Acroneuria jÖzoensis　Okamoto
Japanese: 精蟲發生に見られる細胞異常 : Ⅰ. ミツモンカハグラに於げる巨大精母細胞と生殖細胞の退化現象