Observations in natural history. With an introduction on habits of observing, as connected with the study of that science ; Also a calendar of periodic phenomena in natural history. With remarks on the importance of such registers / by the Rev. Leonard Jenyns.

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Observations in natural history. With an introduction on habits of observing, as connected with the study of that science ; Also a calendar of periodic phenomena in natural history. With remarks on the importance of such registers / by the Rev. Leonard Jenyns. Public Domain Mark. Source: Wellcome Collection.