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KEGAN PAUL, TRENCH, TRÜBNER & CO. LTD.

PATERNOSTER HOUSE, CHARING CROSS ROAD

1899

LIBRARY

PIOLOGY
LIBRARY

(The rights of translation and of reproduction

are

reserved)

LIBRARY

PREFACE VAUCHER long ago called attention to the fact that some species of Rock Rose have stipules while others have none, and suggested that it would be interesting, if possible, to ascertain the reason for this difference. The idea seemed to me a good one, and I devoted myself to a study of the question, with the result which will be found in the following pages.

This inquiry led me on to examine the structure of buds; and the diversity and ingenuity of the devices by which plants protect the young and tender tissues from heat, cold, drought, moisture, insects and other animals, proved so fascinating that I hoped it might not be without interest for others.

The results have been printed in greater detail by the Linnean Society, and I have here selected those parts which seemed to me of most general interest.

I have to thank Mr. THISELTON DYER, the Director of Kew Gardens, Dr. SCOTT, and the whole staff, for the facilities they have kindly afforded me.

I'On Stipules, Parts i-iv. (Linnean Society's JournalBotany, vols. xxviii, xxx, xxxiii), 1890, 1894, 1897.

OF THE
UNIVERSITY
CALIFORNIA

The Trustees of the British Museum and Mr. MURRAY, the authorities of the Cambridge Botanic Gardens, and Mr. LYNCH, have also assisted me with many specimens.

Dr. RENDLE has been good enough again to help me by seeing the book through the press; and last, not least, I must cordially acknowledge how much I am indebted to my able assistant, Mr. FRASER, by whom also many of the drawings have been made.

JOHN LUBBOCK.

High ELMs, Down, KENT:

December 30, 1898.

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