Letter, from Sir William Huggins to Sir John Herschel, dated at Upper Tulse Hill Autograph letter signed by sender. Professor Joseph Winlock of Harvard agrees with all William Huggins's observations of Nebula of Orion. The observations at Bishop's Observatory between 1844 and 1851 appear to be the work of W. R. Dawes. Comments on the reasons William Hugginsy the bright lines are so easily seen. 25 January 1869