Observations on metamorphosis and blood circulation in frogs, and small fish
Date
7 September 1688
Creator
Unknown, Artist
Object type
Archive reference number
Manuscript page number
p1
Material
Dimensions
height (page): 200mm
width (page): 447mm
width (page): 447mm
Subject
Description
10 figures in a letter from Antoni van Leeuwenhoek to the Royal Society. The original drawings are lost.
Fig. 1: egg of a frog
Fig. 2: size of little animal just out of egg
Fig. 3: same little animal through the magnifying glass
Fig. 4: frog-worm as it has attached itself to the glass
Fig. 5: small blood vessels in tail of frog-worm
Fig. 6: artery
Fig. 7: little fish to the naked eye
Fig. 8: another, slightly bigger, little fish
Fig. 9: fish drawn through the magnifying glass
Fig. 10: part of a fin-bone.
Fig. 1: egg of a frog
Fig. 2: size of little animal just out of egg
Fig. 3: same little animal through the magnifying glass
Fig. 4: frog-worm as it has attached itself to the glass
Fig. 5: small blood vessels in tail of frog-worm
Fig. 6: artery
Fig. 7: little fish to the naked eye
Fig. 8: another, slightly bigger, little fish
Fig. 9: fish drawn through the magnifying glass
Fig. 10: part of a fin-bone.
Object history
Letter and images are published in:
Antoni van Leeuwenhoek, Den waaragtigen omloop des bloeds (Delft: A. Voorstad, 1688).
Bibliothèque universelle et historique, 26 vols (Amsterdam, 1686-93), IX (1688), 164-68. (French excerpt.)
Antoni van Leeuwenhoek, Natuurs verborgentheden ontdekt, zijnde een tweede vervolg der brieven, (Delft: A. Voorstad, 1689), pp. 269-98 (pagination: 269, 2, 3, 272, 273, 6, 7, 276-98).
Memoirs for the ingenious (J.C. de la Crose) (1693), pp. 145-52 (letter 19). (English translation.)
Antonio van Leeuwenhoek, Arcana naturae detecta (Delft: H. a. Krooneveld, 1695), pp. 165-86. (Latin translation.)
Antoni van Leeuwenhoek, Den waaragtigen omloop des bloeds (Delft: A. Voorstad, 1688).
Bibliothèque universelle et historique, 26 vols (Amsterdam, 1686-93), IX (1688), 164-68. (French excerpt.)
Antoni van Leeuwenhoek, Natuurs verborgentheden ontdekt, zijnde een tweede vervolg der brieven, (Delft: A. Voorstad, 1689), pp. 269-98 (pagination: 269, 2, 3, 272, 273, 6, 7, 276-98).
Memoirs for the ingenious (J.C. de la Crose) (1693), pp. 145-52 (letter 19). (English translation.)
Antonio van Leeuwenhoek, Arcana naturae detecta (Delft: H. a. Krooneveld, 1695), pp. 165-86. (Latin translation.)
Related fellows
Antoni van Leeuwenhoek (1632 - 1723, Dutch) , Naturalist
Associated place