Note 230 — Drittes Kapitel. Von den elementaren Lebensäußerungen. (continued 3)
Reading edition
E. A. SCHÄFER: „On the minute structure of the muscle-columns or sarco-styles which form the wing-muscles of insects“. Preliminary note. In Proceedings of the Royal Society, Vol. 49, 1891. — Derselbe: „On the structure of cross-striated muscle“. In Monthly International Journal of Anatomy and Physiol., Vol. 8, 1891.