Letter, from Elias Loomis to Sir John Herschel, dated at New York University Autograph letter signed by sender. Heard from George Bancroft that he was forwarding John Frederick William Herschel's book on the Southern Nebulae. Has not received it yet so presumes it must have been lost in transit. Sends some of his own astronomical papers for John Frederick William Herschel. Has made observations of Halley's Comet; gives details as he believes they are from a period for which John Frederick William Herschel lacks information. 24 March 1848