3040 17r. 



3040 OTHER MERIDIAN 

 JXSTRUMENTS. 



Chandler, S[etli] C. [Value of] the 

 < I'lffinvich reikx zenitli-tube, [in relii- 

 lion to constants of latitude-variation]. 

 Astr. J. Boston, Mass., 22, 1901, (57- 

 *•>()). [5100]. 



Doolittle, C[harles] L[eanfler]. R'e- 

 suits of observations with the zenith 

 telescope, Flower Observatory, Univer- 

 sity of Pennsvlvania. Astr. J., Boston, 

 Mass., 21, I'JOJ, (73-74), 22, 1901, (37- 

 -•38). 



Kimura, Hisashi. Forrnnla and tables 

 for deterniinin|T the time witli a portable 

 transit instrument in the meridian, by 

 i'liminating azinuilh constant from the 

 ■fjbservation of a circumpolar star. 

 Tokvo, Su. Buts. Kw. K., 8, 1901,(209- 

 214). 



3100 -MICI!()METER, A'lSUAL 



AND I'lloTOtiliAl'IIR'. 



Refraction, Aberration. 



HinkB, Arthur R[obert]. On the 

 :accuracy of measures on photographs. 

 Remarks on recent Papers, by M. Loewy 

 jind H. C. Plummer. London, Mon. 

 Not. R. Astr. Soc, 62, 1902, (132-137). 



Plummer, H[cnry] C. On the ac- 

 •i-uracy of jihotographic measures. A 

 <liscufesion of a recent paper by Jl. 

 Loewv. London, Mon. Not R. Astr. 

 i^cc, 61, ll'Ol, (C18-G28). 



Turner, Il[erbert] H[all]. On an ex- 

 ctptioiial case in the determination of 

 the constants of a photographic ]:;late 

 from linoANTi stars. London, Rep. Brit. 

 Ass., 1901, (543). 



3200 PERSONAL EQCATIONS. 



Brown, W. V. On the effect of 



single and double lines upon personal 

 frror in transit observations. Astr. 

 J., Boston, Mass., 22, 1901, (1)3-65). 



Bryant, Walter \V[illiani]. Further 

 investigation of the "Two-Method" 

 personal equation. London, Mon. Not. 

 R. Astr. Soc, 61, 1901, (4U8-414). 



Cohn, Fritz. Ergebnisse von Beo- 

 bachtungen am R e p s o 1 d 'schen Regis- 

 trirmikrometer bei Anwendung eines 

 LTirwerks. Astr. Nachr., Kiel, 157, 

 1902, (357-37G). [2140]. 



Sande Bakhujrzen, H[enricus] G[erar- 

 dus] van df. L'influence de I'echit de 

 Petoile sur le temps de perception ct sur 

 I'equation personelle. Haarlem, Arch. 

 Neerl. Sci. Soc. HoU., (Ser. 2), 6. 190], 

 (727-740). 



Struve, H[ermann]. Ueber die A'er- 

 bindung eines Uhrwerks mit dem ,,un- 

 personlichen " Mikrometer von Rep- 

 sold. Astr. Nadir., Kiel, 155, 19U1. 

 (353- 3GU). [2140]. 



Turner, H[erbert] H[all]. Determina- 

 tion cf Dr. Kiistner's magnitude equa- 

 tion from comparison of his meridian 

 observations in zones -f 24" to -~ 27", 

 with measures of photographic plates 

 taken at the University Observatory, 

 Oxford. London, Mon. Not. R. Astr. 

 Soc, 62, 19U2, (.3-0). 



3220 ERRORS OF SCREW>. 

 CIRCLES, Etc., FLEXURE. 



Cowell, P[hilip] H[erbert]. The nor- 

 mal equations that arise in the usual 

 schemes of observation for division 

 errors and their solutions. London. 

 Mon. Not. R. Astr. Soc, 61, 1901, (527- 

 531). 



Hartmann, J. Ueber die Correction 

 eines jx^riodischeu Fehlers in der 

 Beweginig des Potsdamer 8i) cm- 

 Refractors. Astr. Nachr., Kiel, 158, 

 1902, (1-14, mit 1 Taf.). [2050]. 



Die elektrische Heizein- 



richtung des Pot-idamer Sternsjiektro- 

 graphen No. III. Zs. Jnstrumentenk., 

 Berlin, 21, 1901, (313-325). [C lUKt]. 



3240 PHoTnCRAPHlC MATE- 

 RIALS AND PL'OCl>Sl>. 



Plates, Development, Fading of 

 Images. 



Clark, Cieorge. The scientific value 

 of jihotography for astronomical inve— 

 tiaations. I'o]). Astr., Northfield, Minn., 

 9,'^ 1901, (294-304). 



Doleial, E[duard]. Arbeiteu und 

 Fortschritte auf dem Oehiete der Photo- 

 grammetrie im Jahre 1900. Jalub. 

 Phot. , Halle, 15. 1901, (337-383). [J 87 

 C 3080]. 



Jones, Chapman. The pres?r\ation 

 of photogiaphic records. Nature, 

 London, 63, I'JOl, (373-374). 



