1 y 18.j The N.Z. Journal of Science and Technology. 357 
in green blue ; (7) bright band in blue-violet ; also throughout spectrum 
other bright bands and dark lines, faint and ill defined. Magnitude and 
colour about same as last night. 
June 15.—Examined Nova with a 4 in. Cooke equatorial. Not so bright 
as Altair. Took another photo : exposure, 25 minutes. Spectrum— 
(1) Vivid red band ; (5) (6) in green-blue as before, but (6) very broad 
and distinct by comparison with previous appearance. 
June 16.—Examined Nova and took another photo : exposure, 15 minutes. 
Spectrum much the same as last night. 
June 24. — Observed Nova Aquilae through break in the clouds. 
Magnitude below 2. Spectrum difficult to make out owing to reduction 
in magnitude of star, and bad weather ; but one green band very distinct, 
brighter than before. 
June 26.—Observed Nova with naked eye. Magnitude about 3V 
June 29—Observed Nova with 4 in. Cooke equatorial and Watson- 
Conrady. Star much reduced in brightness, and of a distinctly red colour. 
With spectroscope made out three bright bands in green-blue. Could not 
make out red band or violet end of spectrum. Took photo (No. 4) : 
exposure, 10 minutes. 
July 1.—Observed Nova with binocular. Star much diminished since 
last appearance, and very red. 
July 4.—Examined Nova with binocular (X 6). Very red. Magnitude 
about 3|-. 
July 5.—Examined Nova with a spectroscope on Watson - Conrady. 
Light very feeble : difficult to distinguish one end of spectrum from other. 
Bright bands—(1) red ; (5) (6) green-blue ; (7) blue-violet. 
July 6.—Examined Nova with prism binocular (X 8). About equal to 
7 ] Serpentis ; quite red. 
Notes by E. L. Morley, Atkinson Observatory, Nelson. 
1918, June 13.—1 a.m. Observed visually from Auckland Harbour. 
Nova appeared to be between a and fi Centauri, or about magnitude 0-6. 
Comparison doubtful owing to clouds. 
June 14.—3 a.m. At Raurimu. Skv heavily overcast. Nova appeared 
slightly below Altair ; magnitude 0-9. 
June 15.—9 p.m. At Wellington. Sky fairly clear. Nova certainly 
below Altair, and evidently declining rapidly. 
June 28.—9 p.m. At Nelson. The instruments used at the Atkinson 
Observatory, Nelson, were a 5 in. Cooke equatorial telescope with clock 
and McClean star spectroscope (five prisms) by Browning. The Nova was 
declining rapidly. It was estimated to be slightly below y Serpentis or 
8 Aquilae and about equal to A. Aquilae — i.e., magnitude 3-6; colour 
distinctly ruddy. The spectrum was exceeding interesting. It appeared to 
be faintly continuous, although no actual colour could be perceived, and 
was crossed by four bright lines and a fainter one, also by three well-defined 
absorption bands. The line (1) was a rather bright line in the red, judged 
to be about the position of the solar line C ; line (2) was a very bright line 
in the blue-green; line (3) was very bright and distinct, and seemed to. 
correspond to the solar line F ; line (4) was wider, almost a band, and con¬ 
siderably fainter than the line (3) ; line (5) was a bright line, very faint, 
