histology

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Tendril movements in Cucurbita maxima and C. pepo, with Plate V
D. P. Penhallow

American Journal of Science January 1886, s3-31 (181) 46-57; DOI: https://doi.org/10.2475/ajs.s3-31.181.46
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On photographing histological preparations by sunlight
J. J. Woodward

American Journal of Science October 1871, s3-2 (10) 258-267; DOI: https://doi.org/10.2475/ajs.s3-2.10.258