33 



E 



Meridian Instruments .. 2070, 



Line. . 



Meteoric Streams, Figure of . . 



Orbits 



Meteors . . 



Spectroscopy 



Micrometer for Measuring Plio- 

 tographic Spectra . . 2260, 



for Visual Observations 2260, 



Micrometers 



Milky Way 



Minor Planets . . . . 5900- 



Elements and Eplieme- 



rides 



• ObseiTations . . 



Satellites . , 1510, 



Theory and Numerical 



Application 



Mirrors 2040, 



Monochromatic Images, Appara- 

 tus for . . 



Month 



Moon 



Atmosphere 



Brightness . . 



Configuration of Surface . . 



Constants and Dimensions 



Density 



Distance 



Drawings . . 



Eclipses 



Influence on Terrestrial 



Phenomena 



Maps 



Mass . . 



Observations for Position . . 



Occultation by 



Phases 



Photograplis 



Radiation 



Rotation 



Spectroscopy 



Temperature 



Theory of . . 



Movement of Earth and Equi- 

 noxes, Correction for . . 



Orbital, of three or more 



Bodies . . 



of two Bodies 



Multiple Stars . . . . 7510, 



Multiple Systems, Spectroscopic 



Museums . . 



Nebulfe 1860, 



Spectroscopy 



Neptune . . 



Satellites 



Spectrum 



Theory 



Application 



Nomenclature 



(e-6988) 



and 



6300- 

 1540, 

 6390, 

 Numerical 



3070 

 0150 

 1G80 

 1130 

 6650 

 6950 



3100 

 3100 

 2140 

 7900 

 -5990 



5900 

 5910 

 6540 



1310 



2050 



2270 

 9330 

 4800 

 4840 

 4850 

 4830 

 4820 

 4820 

 4820 

 4890 

 4860 



4880 

 4890 

 4820 

 4810 

 4870 

 4850 

 4890 

 4850 

 4830 

 6810 

 4850 

 1400 



0240 



1200 

 1110 

 7520 

 8600 

 0060 

 7800 

 8200 

 6390 

 6580 

 6820 



1350 

 0070 



Nutation, Determination of Con- 

 stant . . . . . . . . 3320 



of the Earth . . 0260, 1710 



Objective Grating . . . . 2210 



Prism 2210 



Objectives 2040 



Observations, Reduction and Rec- 



tiGcation .. .. 3030-3250 



Observatories . . . . 2000, 2010 



Observatory Buildings . . . . 2020 



Occultation, Calculation of . . 0350 



by the Moon . . . . 4870 



Oceans of the Earth, Figure of. . 1610 



Optical Matters 2040 



Orbh 8, Calculation .. 1120,1820 

 Character of .. .. 1200 



Correction . . . . . . 1160 



Periodic 1200 



Stellar, from Spectroscopic 



Observations . . . . . . 8620 



Parallax 0220 



Annual, Correction for . . 0270' 



of Fixed Stars . . . . 7070 



Solar 4050 



Stellar, from Spectroscopic 



Observations . . . . . . 8630 



Pedagogy 0050 



Pendulum Observations.. .. 5100 



Periodicals 0020 



Personal Equations . . . . 3200 



Perturbations, General . . . . 1250 



Special 1590 



Philosophy 0000 



Photographic Apparatus . . 2130 



Photographic Plate Holders . . 2120 

 Photographs, Celestial, Reduction 



3250 



4890 



7005 



8450 



4360 



2400 



2020 



1250 



4780 



. . 1640 



. . 1130 



6800, 6820 



. . 2300 



1130, 



Lunar 



Stellar 



Spectra 



Solar 



Photometry 



Piers 



Planetary Theory 



Planets 



Figure 



Orbits 



Spectroscopy 



Polarization Apparatus 



Poles, Movement on the Sur- 

 face of the Earth 



Precession, Correction for 



Determination of Constant 



of the Earth . . 0200 



Prism Combinations 



Objective 



Prizes 



Radiometry 



Reflectors and Refractors, Com- 

 parison . . 



1720 

 0260 

 3320 

 1710 

 2240 

 2210 

 0020 

 2500 



2040 



