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- TABLE DES MATIÈRES
- TABLE DES ILLUSTRATIONS
- RECHERCHE DANS LE DOCUMENT
- TEXTE OCÉRISÉ
- Première image
- PAGE DE TITRE
- Preface to the third edition (p.R2)
- Contents (p.R3)
- Introduction (p.5)
- The various forms of telescopes. Their construction and advantages (p.7)
- Refracting telescopes (p.11)
- Stands for indirect-vision reflectors (p.31)
- Equatorial adjustments (p.41)
- To silver and polish glass specula (p.49)
- Apparatus (p.49)
- To support the Mirror in the Silvering Vessel (p.50)
- To clean the mirror (p.51)
- To immerse the mirror (p.51)
- To prepare the Silvered surface for polishing (p.52)
- To polish the Silvered surface (p.53)
- To separete the Mirror from the Wooden Support (p.54)
- Martin's process of silvering (p.54)
- Dr. Henry Draper's formula for silvering (p.56)
- The sugar of milk process for silvering (p.56)
- General, hints on silvering (p.57)
- Accessories to the telescope (p.58)
- Observatories (p.66)
- Defining and separating tests (p.78)
- Light tests (p.79)
- Catalogue of reflecting and retracting telescops and their accessories (p.81)
- Achromatic perspective glasses (p.81)
- Achromatic opera glasses (p.81)
- Achromatic field glasses (p.81)
- Achromatic telescopes (p.83)
- Horne and thornthwaite's binocular telescopes (p.83)
- Refracting telescopes for astronomical purposes (p.84)
- Astronomical object glasses (p.87)
- Astronomical reflecting telescopes (p.89)
- Silvered-glass specula (p.93)
- Silvered-glass diagonal mirrors (p.93)
- The “romsey” observatory (p.93)
- Silvering and polishing specula (p.94)
- Apparatus for silvering (p.94)
- Set of silvering apparatus (p.94)
- Astronomical eye pieces (p.95)
- Solar eye pieces (p.95)
- Micrometers (p.95)
- Astronomical spectroscopes (p.96)
- Trabsit instruments (p.96)
- Works on astronomy (p.96)
- Dernière image
- Première image
- PAGE DE TITRE
- The german equatorial stand (p.17)
- The victoria equatorial (p.18)
- The alt-azimuth stand (p.32)
- Horne and Thornthwaite's equatorial reflector (p.34)
- Horne and Thornthwaite's portable equatorial reflector (p.35)
- The berthon equatorial (p.38)
- The berton equatorial (p.39)
- The victoria equatorial telescope (p.85)
- Berthon patent equatorial stand (p.90)
- The alt-azimuth stand (p.92)
- Binoclar microscope (p.97)
- Dernière image
CONTENTS.
Introduction ...
The various forms of Telescopes
Refracting Telescopes .............................
The Galilean and its adjustments ...........
The Opera-Glass and its adjustments ...
The ordinary Refracting Telescope and its adjustments Stands for Refracting Telescopes Reflecting Telescopes ... ... ...
The Gregorian and its adjustments .................
The Cassegrainian and its adjustments... ...
Stands for Direct-Vision Reflectors ...............
The modified Cassegrainian and its adjustments
The Herschelian and its adjustments.........
The Newtonian and its adjustments
Stands for Indirect-Vision Reflectors ... ... •••
The Alt-azimuth Stand................... ..........
The Equatorial Stand ..............................
Berthon’s Patent Equatorial Stands Equatorial Adjustments ...
To find a Celestial Object with an Equatorial......
To convert Mean into Sidereal Time ...
Table of Refractions ......... ....................
To adjust the Finder ... ... •••
To Silver Specula .................................
PAGE.
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Le texte affiché peut comporter un certain nombre d'erreurs. En effet, le mode texte de ce document a été généré de façon automatique par un programme de reconnaissance optique de caractères (OCR). Le taux de reconnaissance estimé pour cette page est de 96,40 %.
La langue de reconnaissance de l'OCR est l'Anglais.
Introduction ...
The various forms of Telescopes
Refracting Telescopes .............................
The Galilean and its adjustments ...........
The Opera-Glass and its adjustments ...
The ordinary Refracting Telescope and its adjustments Stands for Refracting Telescopes Reflecting Telescopes ... ... ...
The Gregorian and its adjustments .................
The Cassegrainian and its adjustments... ...
Stands for Direct-Vision Reflectors ...............
The modified Cassegrainian and its adjustments
The Herschelian and its adjustments.........
The Newtonian and its adjustments
Stands for Indirect-Vision Reflectors ... ... •••
The Alt-azimuth Stand................... ..........
The Equatorial Stand ..............................
Berthon’s Patent Equatorial Stands Equatorial Adjustments ...
To find a Celestial Object with an Equatorial......
To convert Mean into Sidereal Time ...
Table of Refractions ......... ....................
To adjust the Finder ... ... •••
To Silver Specula .................................
PAGE.
s
7
ii
ii
11
12 16 19
19
20
21
21
22
23 31 31
36
37 4i
46
47
48 48
49
Le texte affiché peut comporter un certain nombre d'erreurs. En effet, le mode texte de ce document a été généré de façon automatique par un programme de reconnaissance optique de caractères (OCR). Le taux de reconnaissance estimé pour cette page est de 96,40 %.
La langue de reconnaissance de l'OCR est l'Anglais.