SHORT CUTS BY BIRDS TO NECTARIES. 381 
Short Cuts by Birds to Nectaries. 
Ву С. Е. M. Swynnerroy, F.L.S., F.E.8., C.M.B.O.U. 
(PLATES 31 & 32.) 
[Read 5th March, 1914. | 
CONTENTS. 
Page 
A. Introduction еее heh m hm 381 
В. Observations on Canna indica, Linn., var. orientalis., Rosc., and other Species. 383 
C. » Aloë Swynnertonit, Rendle wi... ccc eee eee eee 385 
р. " Gardenia tigrina, Welw., and Dracena fragrans, Gawl... 386 
E. Note on Erythrina 2.0... ccc cece hn ee e hn 387 
F. Observations on Leonotis mollissima, Gürke о... аа 388 
G. » Grevillea robusta, А. Cunn., and Grevillea Banksii, R. Br... 398 
H. n Kniphofia rhodesiana, Rendle ,,.....,.,....,,.......... 305 
I. » Halleria lucida, Linn., and other plants ................ 404 
J. The Attraction „еее se heme hh nn 406 
К. The Deterrent ............................. Hmmm 407 
L. Lists of the Birds and Flowers observed ..... ....,........,.......... 408 
M. Summary of main рош{з.................... cee ete ees 410 
N. Addendum. On Observations by Dr. John Lowe and Mr. N. В. Moore .. 411 
A. INTRODUCTION. 
1. BEronE going on to state the observations that form the subject of this 
paper, I would like to take this, my first publie opportunity, to tender my 
very warm thanks to the staff of the British Museum Herbarium—my kind 
friends Dr. A. B. Rendle, Mr. E. G. Baker, Mr. Spencer Moore, and 
Mr. A. Gepp—for the immense trouble they expended over the working out 
of my plant collection. The value of help of this kind and the very real 
incentive it supplies to extended and possibly useful work ean only, I think, 
be fully appreciated by those who have for some years struggled along with 
but a hazy knowledge of the nomenclature and affinities of the objects that 
have exeited their interest. 
I have, however, to thank them for much more than this: Mr. Moore has 
never tired of urging me to take up pollination and ecology, and has assisted 
me on various points in connection with the present paper ; and to him, to 
Mr. Baker, and to Dr. Rendle I am indebted for much kindness and help of 
various kinds during and since my last visit to England. 
I would also like to acknowledge my indebtedness to my very kind and 
deeply-regretted friend, the late Miss Helen Robins, for the great trouble 
she went to in typing a large portion of this and other papers for me from 
a very illegible MS.; as well as to Dr. Daydon Jackson, for much help in 
