Xll CONTENTS. 



r-A(;K 



LXIII. ACCOUNT OF SOME IMPROVEMENTS IN THE CONSTRUCTION OP HOT- 

 BEDS. Read July 3, 1827 298 



LXIV. ON THE CULTURE OF THE POTATO. Read July 1, 1828 . . 300 

 LXV. ON THE CULTIVATION OF THE PINE-APPLE. Read August 19, 1828 302 



LXVI. UPON THE SUPPOSED CHANGES OF THE CLIMATE OF ENGLAND. 



Read May 5, 1829 307 



LXV1I. ACCOUNT OF AN ECONOMICAL METHOD OF OBTAINING VERY EARLY 



CROPS OF NEW POTATOES. Read May 4, 1830 . . . 310 

 LXVI 1 1. ACCOUNT OF A METHOD OF OBTAINING VERY EARLY CROPS OF 



GREEN PEAS. Read May 18, 1830 . . . . . 312 



LXIX. UPON THE CULTIVATION OF THE PERSIAN VARIETIES OF THE 



MELON. Read May 1, 1831 314 



LXX. ON THE POTATO. Read February 1, 1831 318 



LXXI. ON THE MEANS OF PROLONGING THE DURATION OF VALUABLE 



VARIETIES OF FRUITS. Read May 3, 1831 .... 323 

 LXX1I. UPON GRAFTING THE WALNUT-TREE. Read April 17, 1832 . . 326 



LXXI1I. ON THE BENEFICIAL EFFECTS OF THE ACCUMULATION OF SAP IN 



ANNUAL PLANTS. Read December 20, 1830 .... 328 



LXXIV. ON THE ADVANTAGES OF IRRIGATING GARDEN GROUNDS BY MEANS 



OF TANKS OR PONDS. Read August 7, 1832 . . . 332 

 LXXV. ON THE CULTURE OF THE POTATO. Read March 19, 1833 . 334 



LXXVI. UPON THE CAUSES OF THE PREMATURE DEATH OF PARTS OF THE 

 BRANCHES OF THE MOORPARK APRICOT, AND SOME OTHER WALL 



FRUIT-TREES. Read June 2, 1835 . . . . . . 336 



LXXVII. ON THE MEANS EMPLOYED IN RAISING A TREE OF THE IMPE- 



RATRICE NECTARINE. Read February 3, 1835 . . . 330 



LXXVII I. ON THE PROPAGATION OF TREES BY CUTTINGS IN SUMMER. 



Read April 3, 1838 340 



APPENDIX. 



CONTAINING PAPERS ON ANIMAL ECONOMY. READ BEFORE THE 

 ROYAL SOCIETY : 



I. ON THE COMPARATIVE INFLUENCE OF MALE AND FEMALE PARENTS 



ON THEIR OFFSPRING. Read June 22, 1819 . . . . 343 

 II. ON THE ECONOMY OF BEES. Read May 14, 1807 . . . 348 



III. ON SOME CIRCUMSTANCES RELATING TO THE ECONOMY OF BEES. 



Read May 22, 1838 354 



IV. ON THE HEREDITARY INSTINCTIVE PROPENSITIES OF ANIMALS. Read 



May 25, 1837 358 



