Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007jbaa..117..309m&link_type=abstract
Journal of the British Astronomical Association, vol.117, no.6, p.309-313
Astronomy and Astrophysics
Astronomy
Scientific paper
Within a few months of the founding of the Association in 1890 October, the membership numbered several hundred amateur and professional astronomers in Britain and around the world. International recognition was also marked by a number of eminent speakers at meetings, including the instrument maker John A. Brashear, of Allegheny, Pennsylvania. In 1888 Brashear had toured the British Isles and Europe, visiting observatories and meeting many eminent astronomers. He seems to have been impressed with everyone he met - particularly British amateurs - and during his second visit to England in 1892 he spoke at the Association's meeting on April 27. In 1890 December he presented to the Association a speculum-metal diffraction grating which had been prepared at his own works and ruled on Henry Rowland's engine at Johns Hopkins University, Baltimore.
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