Page 638 - 89 history of astronomy_opt

When Sir John Herschel had extended
his father’s researches into the Southern Hemi-
sphere he was also led to the belief that
some nebulae were a phosphorescent mate-
rial spread through space like fog or mist.
Then his views were changed by the rev-
elations due to the great discoveries of Lord
Rosse with his gigantic refractor,[22] when
one nebula after another was resolved into
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