CHELSEA:
PRINTED BY WILLIAM BLATCH, 23, EXETER STREET,
SLOANE STREET.
TO
M. OTTO,
DIRECTOR OF THE ROYAL BOTANIC GARDENS, BERLIN,
THE FOLLOWING PAGES ARE MOST RESPECTFULLY DEDICATED,
AS A SLIGHT
TESTIMONY OF GRATITUDE FOR HIS KINDNESS,
AND AS A
TRIBUTE TO HIS INDEFATIGABLE ZEAL