Observations of 500 Nebulae. 



115 



Night 



Date 



Refract. 



Coincidence 

 of 

 Microm. 



Temp. C. 



Remarks on the images and state of 

 the atmosphere 





1868 















229 



Nov. 12 



I 







- 



0°3 



1.2 



Sky very light. 



230 



Nov. 20 



I 



34,973 (3) 



- 



7,5 



2.3 



Aurora; slight wind. Images unsteady. 



231 



Dec. 9 



I 



34,966 (2) 



- 



7,5 



2.3 



Sky very light; slight wind. Illumination deficient. 



232 



Dec. 12 



I 



— 



- 



2,9 



2 



Observation very troublesome through gale and de- 

 ficient illumination. 



233 



Jan. / 



I 





- 



2,5 



3.4 



Sky very light from strong aurora; soon suddenly 

 covered. Images very dull. 



234 



Jan. lu 



I 



OA 078 C.Tl 

 o-±, via V'-V 





0,6 



2.3 



^l^V Vfl'V 1 1 (Till TWlTYl IllTTlVO llT\TO/*4 /vlnaa A I v-^. r. VI 



okj vLiy iigiiu iiuut tiuiuict. v.M)j cci-^i lass ciimmeu. 



235 



Jan. 18 



II 



o a Ci n '3 9 \ 

 o4,y i 6 





5 3 



2 



TWnflTl ■ f*TTVnl 



236 



rebi. & 



II 











2 



imicrllt nilrnvjl* WlTtdv TlYlflcrpc ,lnll in.l i'n/liofi'n/i4- 

 oiiguu auiuia , wiuuj. xiiiagco null allU JUlUloulIlCu* 



237 



l<e or. 6 



II 



34,975 (2) 









2,3 



ftl.v i 11 urn in ntpil hv n QTilpTiHifl nirAfo ■ m,' n /l w 



kJllV I 1 1 1 1 1 1 1 1 ! 1 1 1 \ tJ\ Oi OM1CI1U1U wUlUXHt. WlllCly. 



238 



Ijeor. 21 



I 



34,989 ( 2 ) 





7 ^ 



2 



fttrono* mooulip'bt Ttnnf^^ nn^fpndv 



239 



tebr. 46 



II 



34,975 (3) 





6 6 



2.3 



Very strong moonlight; soon clouding. Images very 

 tremulous. 



240 



Febr. 26 



II 



34,973 (3; 



+ 



1,0 



2 



Very strong moon; soon clouding. 



241 



March 1 



II 



34,977 (1) 



— 



7,1 



3 



Atmosphere misty. Images very dull. 



242 



March 3 



II 



34,973 (I) 



— 



5,0 



3.4 



Strong aurora; cirrhi; hoarfrost. 



243 



March 4 



II 



— 



— 



6,5 



2.3 



Aurora. Hoarfrost. 



244 



March 5 



II 



— 



— 



7,2 



1.2 



Aurora. 



245 



March 6 



II 



34,981 (3) 



— 



7,5 



1.2 



Slight aurora. 



246 



March 7 



II 



34,974 f3) 



— 



6,6 



1.2 



Sky very light from aurora. Hoarfrost. 



247 



March 13 



II 



— 



— 



5,1 



2.3 



Sky very light from aurora. Observations difficult. 



248 



March 14 



II 



34,975 (3) 





2,0 



3 



Soon cpiite covered. 



249 



March 28 



II 



34,972 (2) 





1,5 



2 



Strong moon; cirrhi. Images unsteady. 



250 



March 30 



II 



34,981 (3) 



+ 



3,0 



1.2 



Atmosphere very dry; windy. Images unsteady. 



251 



March 31 



II 



— 



+ 



4,3 



2 



Aurora. Images dull and tremulous. 



252 



Apr. 8 



II 



— 



+ 



4,3 



2 



Strong aurora — soon clouding. 



253 



Apr. 12 



II. I 



34,982 (3) 





1,2 



1 



Slight aurora — splendid atmosphere. 



254 



Apr. 21 



I 



34,975 (3) 



+ 



7,2 



1.2 



Strong moon; sometimes feeble clouds. 



255 



Apr. 22 



I 



34,972 (2) 



+ 



7,5 



3 



Strong moon — soon quite covered. 



256 



Aug. 3 



II 





+ 



16,0 



1.2 



Images unsteady. 



257 



Aug. 13 



I 





+ 13,5 



1.2 



Sky tolerably light; very damp. 



258 



Aug. 27 



I 



34,973 (3) 



+ 13,1 



2 



Moon tolerably strong; clouds. - 



259 



Aug. 29 



I 





+ 



9,2 



1 



Moon tolerably strong. Images unsteady. 



260 



Aug. 30 



I 



34,982 (4) 



+ 



7,1 



1 



Tolerably strong moon; atmosphere dry. 



