🐸 North American herpetology: .
Philadelphia: J. Dobson, 1836-1840.
https://t.co/aPpxiJt0WJ

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🌎 North American herpetology:
Philadelphia, J. Dobson;1842.
https://t.co/kdcqAJ4Dh8

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🌎 North American herpetology:
Philadelphia, J. Dobson;1842.
https://t.co/YFKwHqQbkQ

3 18

🌎 North American herpetology:
Philadelphia, J. Dobson;1842.
https://t.co/pMPAJLILM5

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Today is so if you are a Member take a look at this paper in our journal "Archives of Natural History" on the rains calls of frogs: https://t.co/fAtGkIdfcZ
Image: Wood frog (Rana sylvatica) in J Edwards Holbrook, 'North American herpetology', Vol. 4 (1842), pl. 24.

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🐸 North American herpetology:
Philadelphia, J. Dobson;1842.
https://t.co/wxWlEKhc1t

3 17

🌎 North American herpetology:
Philadelphia, J. Dobson;1842.
https://t.co/bwHpMJTQPc

1 19

🌎 North American herpetology:
Philadelphia, J. Dobson;1842.
https://t.co/wqNBvtWz4A

2 8

🌎 North American herpetology:
Philadelphia, J. Dobson;1842.
https://t.co/S1aBzgk3Hl

2 9

🐸 North American herpetology. v.2.
Philadelphia: J. Dobson, 1836-1840.
https://t.co/kZSQGCLG1d

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🌎 North American herpetology:
Philadelphia, J. Dobson;1842.
https://t.co/YFKwHqQbkQ

1 13

🌎 North American herpetology:
Philadelphia, J. Dobson;1842.
https://t.co/lOwWvOfLvC

5 13

🦎 North American herpetology. v.3.
Philadelphia: J. Dobson, 1836-1840.
https://t.co/9ZbeK7PoFm

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🌎 North American herpetology:
Philadelphia, J. Dobson;1842.
https://t.co/nAc1OT3P5n

1 7

🌎 North American herpetology:
Philadelphia, J. Dobson;1842.
https://t.co/FAH7rkfmx0

0 7

🌎 North American herpetology:
Philadelphia, J. Dobson;1842.
https://t.co/rjaUIpCQq7

4 26

🌎 North American herpetology:
Philadelphia, J. Dobson;1842.
https://t.co/mSLOygmye5

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🐸 North American herpetology. v.1
Philadelphia: J. Dobson, 1836-1840.
https://t.co/bLk6jOv9uk

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🌎 North American herpetology:
Philadelphia, J. Dobson;1842.
https://t.co/ZWwg7Gc2AJ

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