News and Notes
Abstract
US Scientific Expedition to West Africa, Death of Professor Jacob Ennis, A Simple Approximate Formula for the Refraction, The Mechanics of the Solar System, Fresnel's Mirror Experiment, Jonathan Young Scammon, Refinements of Modern Instruments, Annals of Harvard College Observatory, <q>The Chief Discoverers of Comets</q> by Lewis Swift, The Sun-spots and La Grippe, Telescopes for Sale
- Publication:
-
Sidereal Messenger
- Pub Date:
- April 1890
- Bibcode:
- 1890SidM....9..185.