Y
- Yerkes observatory, 40-inch refractor, [8], [9];
- 5-foot reflector, [12]
- Young, illustrations from 'The Sun,' [48];
Z
- Zöllner, reflective power of Jupiter, [156]
THE END
BILLING AND SONS, LTD., PRINTERS, GUILDFORD.
Transcriber's Note
° indicates hours (or degrees); ′ indicates minutes (prime = minutes = feet); ″ indicates seconds (double prime = seconds = inches).
Sundry missing or damaged punctuation has been repaired.