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Log

Page	Plate	Object	Start	Obs H.A.	Obs Dec	Stop	Date	Miscellaneous
82							Dec 16 1899	x 12353 Perforated brass on plate. Intended exp. = 10s but dome stuck on image giving 20s: aperture of dome. = 3 inches.
82							Dec 16 1899	x 12354 Aperture as in last.
82							Dec 16 1899	x 12355 Aperture as in last.
82							Dec 16 1899	x 12356 Aperture as in last and perforated brass.
82							Dec 16 1899	x 12357 Aperture as in last.
82							Dec 16 1899	x 12358 Aperture as in last.
82							Dec 16 1899	x 12359 Aperture as in last and perforated brass.
82							Dec 16 1899	x 12360 Aperture as in last.
82							Dec 16 1899	x 12361 Aperture as in last. Exp. about 2s.
82							Dec 16 1899	x 12362 Moon through perforated brass. Exp. approx. 5 sec. Ap. as in last.
82							Dec 16 1899	x 12363 Exp. approx. 5 sec. Ap. as in last.
82							Dec 16 1899	x 12364 Exp. approx. 2 sec. On a Seed process plate. Ap. as in last.
82							Dec 16 1899	x 12365 Small App. Ec. aperture. Seed process plate approx. 2 sec.
82							Dec 16 1899	x 12366 Same as last.
82	12367	Moon	06 28	0 41 W	+22.7	06 28	Dec 16 1899	x 12367 Same as last, except large Jp. Ec. Ap.
82							Dec 16 1899	Note: Plates (12341-12367) inches, taken during lunar eclipse of this date were standardized with the regular standardizing apparatus in the measures shown by the following diagram. Nos. 5, 4 3 2 1A represent the numbered apertures on the standard disc; while nos. 2, 4, 8, 16, 32 indicate the no. of seconds aperture no. 2 was exposed to the plate. [[diagram on left of numbered apparatus]]