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Studies in Plant Breeding in the Tropics. 
BY 
R. H. LOCK. 
(Fellow and late Frank Smart Student of Gonville and Gains College , 
Cambridge. 
IL—EXPERIMENTS WITH PEAS . 
CONTENTS. 
Introduction : Climate and acclimatization. Methods. 
1. —Telegraph crossed with Native Pea No. 1. 
2. —Telegraph crossed with Ringleader. 
3. —Telephone crossed with Native Pea No. 1. 
4. —Telephone crossed with Ringleader. 
5. —French Sugar Pea crossed with Native Pea No. 1» 
6. —Native Pea No. 2 crossed with Satisfaction. 
7. —Other crosses. 
Summary. 
T~N a previous communication to these Annals* some account 
was given of those recent advances in our understanding of 
the physiology of inheritance which have been derived from studies 
in the cross-breeding of plants ; and in the same paper was embodied 
a preliminary description of certain experiments carried out by the 
writer, which form a contribution to the same subject. It remains 
to set forth a more complete account of the observations already 
* Page 299, Annals of the Royal Botanic Gardens, Peradeniya, Vol. II., 
Part II., August, 1904. 
[Annals_of the Royal Botanic Gardens, Peradeniya, Vol. II., Part III., October, 1905.] 
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