TABLE OF C0NTI;NTS. 



Chapter I. — PreMmHstaky remarks on cross-pollixatiox . ^ ...... . i» 



List of self-sterile plants as given by Focke 12 



Chapter II. — General account of the experiments IH 



The pear flower 13 



Series i. — Experiments at Brockport, N. Y 17 



Plan of the experiments 17 



Weather record 18 



Results of the experiments 19 



Series ii. — Experiments at Chestnut Farm, \^a 20 



Account of the Old Dominion orchard 20 



Weather record 22 



Method of experimentation 21 



Results of the experiments ... 26 



Series III. — Experiments at Rochester, N. Y 27 



General statement 27 



Weather record 28 



Details of the work 28 



Series iv. — Experiments at Geneva, N. Y.... 32 



The Smith orchard 32 



The Slosson orchard 33 



Weather record 33 



Results of the experiments 34 



Chapter III. — Synopsis oe the experiments 35 



Varieties of pears studied 35 



Angouleme (Duchesse d' Angouleme) 3(5 



Anjou 37 



Bartlett 39 



Bosc 42 



Boussock 42 



Brock worth 42 



Bufitum 43 



Clairgeau 43 



Clapps Favorite 44 



Columbia 45 



Delsi Chene {Pi/nis sinensis) 45 



Diel 46 



Doyenne d'Alen^on 46 



Doyenne Sieulle 16 



Easter 16 



Flemish Beauty 4(; 



Gansels Bergamotte 16 



Gray Doyenne 16 



Heathcote 47 



7 



