INDEX. 115 
Page. 
Cestrum diurnum, source of honey in Hawaii 49 
Chemical needs of bee keeping in United States 77 
Cherry, period of nectar secretion in central region of Massachusetts 94 
rum. (See Cherry, wild.) 
source of honey in Massachusetts 90, 93 
wild, period of nectar secretion in Cape Cod region of Massachusetts. . 95 
source of honey in Massachusetts 93 
Chestnut, period of nectar secretion in Berkshire region of Massachusetts 94 
source of honey and pollen in Massachusetts 92, 93 
Chokecherry. ( See Cherry, wild.) 
Citrus, sources of honey in Hawaii 49 
Clematis paniculata, period of nectar secretion in central region of Massachusetts . 95 
wild, period of nectar secretion in central region of Massachusetts 95 
Clethra, period of nectar secretion in Cape Cod region of Massachusetts 96 
source of honey in Massachusetts 92, 93, 96 
Climate, relation to bee diseases 35 
Clover, alsike, source of honey in Massachusetts 90, 92 
crimson, source of honey in Massachusetts 90, 92 
period of nectar secretion in Berkshire region of Massachusetts 94 
central region of Massachusetts 94 
red, source of honey in Massachusetts 90, 92 
sweet, white (see also Melilotus alba) . 
period of nectar secretion in Berkshire region of Massa- 
chusetts 94 
source of honey in Massachusetts 90 
yellow (see also Melilotus officinalis). 
source of honey in Massachusetts 90 
white, period of nectar secretion in Cape Cod region of Massachusetts. . 95 
source of honey in Hawaii 49 
Massachusetts 90, 92 
yellow, source of honey in Massachusetts 92 
"Cocoons" 5 
Coleoptera as pollenizing agents 69, 70 
Columbine. (See Aquilegia canadensis.) 
Comb honey, average number of pounds produced in United States 61-62 
Combs, shallow extracting 4-5 
Conventions of bee keepers in Massachusetts 105 
Cowpeas. (See Vigna catjang.) 
Cranberry, period of nectar secretion in Cape Cod region of Massachusetts 95 
source of honey in Massachusetts 93 
Crocuses, period of nectar secretion in central region of Massachusetts 95 
Crop plants, sources of honey in Hawaii 49 
Crystallization. (See Granulation.) 
Cucumber, pollination by honey bee 99-102 
source of honey in Hawaii 49 
Massachusetts 93 
wild. (See Micrampelis lobata.) 
Cucumis spp. (See Cucumber.) 
Dandelion, period of nectar secretion in Cape Cod region of Massachusetts 95 
source of honey and pollen in Massachusetts 92, 93 
Diptera as pollenizing agents 69, 70 
Disease, definition of term 33 
preexisting, possible relation to bee diseases 35 
