Abstract
A long time-series of sunspot observations is preserved from Samuel Heinrich
Schwabe who made notes and drawings of sunspots from 1825-1867. Schwabe's
observing records are preserved in the manuscript archives of the Royal
Astronomical Society, London. The drawings have now been digitized for future
measurements of sunspot positions and sizes. The present work gives an
inventory and evaluation of the images obtained from the log books of Schwabe.
The total number of full-disk drawings of the sun with spots is 8486, the
number of additional verbal reports on sunspots is 3699. There are also 31
reports about possible aurorae.
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