toh ASTRONOMICAL ANE. 
Thefe obfervations were made with. an achromatic telefcope- 
magnifying go times, made by Nazrze. At 13% 30', I meas | 
fured the moon's horizontal diameter with an obje&-glafs mi-.. 
crometer applied. to a reflecting telefcope of 12 inches focus, 
made by Short, and by a mean of fiveobfervations I found it 33". 
12". The greateft obícuration was at 15" 34* 33, when the 
lucid part of the moon, meafured by the micrometer, was 11* 
31^, amounting to 4 digits 11' : Whence the quantity of the; 
PR. was 7. quin. 49"- 
Mr. Winthrop's obíervation,. | 
| "Temp. appe- 
Ecc began, . . sure | 14^ 13*42'6 
Shade reached Tycho, : 5m28. 
nh Tycho wholly eclipfed, 30 24. 
| Grimaldus, | EP TREE DJ 
oo ct Grimaldus quite eclipea, | 37 42. 
Coo oer Infula Ventorum heir A agi: £9:22- 
"eos ka Copernicus,» Adesi Rpp 
ES Cups horizontal, [Ven 43 sg 
Tycho begins to emerge, 16 26- 6: 
quite out of S e | 27 49 
End of theeelipt, - ee. Sn eines rr 
End of the penumbra, SINSEN 53 45. 
3 TR oW T obferved with a refetor, mae by Nairne,. 
tk and horizontal wires, in ; 55. timess. 
