



Produced by Chris Curnow, Lesley Halamek and the Online
Distributed Proofreading Team at http://www.pgdp.net (This
file was produced from images generously made available
by The Internet Archive)



THROUGH THE TELESCOPE




AGENTS


  AMERICA   THE MACMILLAN COMPANY
  64 & 66 FIFTH AVENUE, NEW YORK

  CANADA    THE MACMILLAN COMPANY OF CANADA, LTD.
  27 RICHMOND STREET, TORONTO

  INDIA     MACMILLAN & COMPANY, LTD.
  12 BANK STREET, BOMBAY
  7 NEW CHINA BAZAAR STREET, CALCUTTA

[Illustration:

  PLATE I.

The 40-inch Refractor of the Yerkes Observatory.]




  THROUGH
 