Transactions of the Royal Microscopical Society of London. London. N.s., vols. 15-16, 1867-68. Trans. Roy. Microscop. Soc. London. Preceded by: Transactions of the Microscopical Society of London. London. Issued with: Quarterly journal of microscopical science. London. Superseded by: Monthly microscopical journal. London. ISSN 2047-1483 HI 76987