Letter from Nevil Maskelyne to Peter Dolland at St Paul's Churchyard

Made:
1771-10-01
maker:
Maskelyne, Nevil

Maskelyne explains with an optical diagram the difficulty encountered by Dollond in obtaining a clear image with a refracting telescope when a red glass [filter] is inserted [for solar observations].

Details

Extent:
160
200
Identifier:
MS/1010
Access:
Open Access