Further observations on the medical leech; including a reprint from the Philosophical Transactions of two memoirs, comprising observations on the Hirudo vulgaris, or common rivulet leech; and on the H. stagnalis and H. complanata, now constituting the genus Glossopora / [James Rawlins Johnson].

Licence: Public Domain Mark

Credit: Further observations on the medical leech; including a reprint from the Philosophical Transactions of two memoirs, comprising observations on the Hirudo vulgaris, or common rivulet leech; and on the H. stagnalis and H. complanata, now constituting the genus Glossopora / [James Rawlins Johnson]. Source: Wellcome Collection.