Xll CONTENTS. 



CHAPTER VI. 



PAGE 



GENERAL PRINCIPLES OP SCIENTIFIC ARRANGEMENT . . . 118 



CHAPTER VII. 



BRIEF NOTICE OF THE SCIENTIFIC CULTIVATION OF BRITISH 



BEES 142 



CHAPTER VIII. 



A NEW ARRANGEMENT OF BRITISH BEES, WITH ITS RA- 

 TIONALE, AND AN INTRODUCTION TO THE FAMILY, SUB- 

 FAMILIES, SECTIONS, AND SUBSECTIONS 153 



CHAPTER IX. 



A TABLE, EXHIBITING A METHOD OF DETERMINING THE 



GENERA OF BRITISH BEES WITH FACILITY . . . . I7l 



EASY DISTRIBUTION OF THE BEES 176 



CHAPTER X. 



THE SCIENTIFIC ARRANGEMENT AND DESCRIPTION OF THE 

 GENERA, WITH LISTS OF OUR NATIVE SPECIES, AND AN 

 ACCOUNT OF THE HABITS AND ECONOMY OF THE IN- 

 SECTS, WITH INCIDENTAL OBSERVATIONS SUGGESTED 

 BY THE SUBJECT 184 



ANDRENID^ (SUBNORMAL BEES) 185 



GEN. 1. COLLETES . 185 



GEN. 2. PROSOPIS . . . . : 191 



GEN. 3. SPHECODES 196 



GEN. 4. ANDRENA 200 



GEN. 5. CILISSA 211 



GEN. 6. HALICTUS 214 



GEN. 7. MACROPIS 220 



GEN. 8. DASYPODA 224 



