Note AH — LETTER the FIFTH.

A very little Knowledge in Opticks will render this indisputable, and has been in a great measure demonstrated before; 1. in the Great Dog; 2. in Bootes; 3. in the Bull; 4. in the Harp of Apollo; 5. in Auriga; 6. in the Lion; 7. in Orion; 8. in the Southern Fish; 9. at the End of Erridanus.