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- Langley, Henry G., author1
- Langley, J., author1
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- Lawson, L. M. (Leonidas Merion), 1812-18641
- Lerebours, N.-P. (Noël Paymal), 1807-1873 author1
- Liston, Robert, 1794-18472
- Littell, S. (Squier), 1803-18861