[ William J. S. Lockyer, astronomer. ] Offprint, with presentation signature, of '"The Solar Activity 1833-1900." By William J. S. Lockyer, M.A., Ph.D., F.R.A.S., Assistant Director, Solar Physics Observatory, Kensington.'

[16]pp., 8vo, paginated 285-300. Stitched into grey printed wraps. On aged and chipped high-acidity paper. Inscribed at head of front wrap: 'With the Compliments of | William J. S. Lockyer | 28.VI.01'. See Lockyer's obituary in the Monthly Notices of the Royal Astronomical Society, vol.97 (1937), pp.275-277. The only copies on OCLC WorldCat at the British Library and Observatoire de Paris.