PREFACE vil 
Measham, Science Mistress of the Wyggeston Girls’ 
School, Leicester. 
I would draw attention to the excellence of the 
illustrations, which, as photographs of the actual 
plants, in many cases in their natural haunts, will be 
invaluable as an aid to identification, each plant 
being thus illustrated. 
For these I am much indebted to Messrs. C. A. Allen, 
W. Bell, H. A. Cox, J. H. Crabtree, F.R.P.S., Stanley 
Crook, the late G. B. Dixon, F.E.S., Carl Edwards, 
F.N.P.S., T. R. Goddard, B. Hanley, Charles Mosley, 
F.E.S., whose skill in this department of photography 
cannot be surpassed. 
A. R. HORWOOD. 
LEICESTER MUSEUM. 
