INDEX. 6 



Bulletin No. Page. 



Calves, credit on milk cost in dairy herds 1101 5, 15 



Camphor, scale, outbreaks in 1921 1103 31-32 



Canada, gipsy-moth, control measures 1103 50 



Canker, heat, of flax, investigations, bulletin by C. S. Reddy and 



W. E. Brentzel 1120 1-18 



Caragana, adaptability for shelter-belt planting 1113 13, 15 



Carnation, stigmonose, caused by insect punctures 1102 13, 15 



Cattle, daily, relation of cost to other costs in milk production 1101 10-11 



Cedar — 



lumber production, by States, 1920 1119 50 



red, adaptability for shelter-belt planting 1113 11 



Celama sorghiella outbreak in 1921 1103 24-28 



Chaney, J. Burton, and Asher Hobson, bulletin on Marketing, 

 "Sales methods and policies of a growers' National marketing 



agency " ^ 1109 1-36 



Chemistry, failure of analysis for fertilizer 1108 1-2 



Chestnut, lumber production, by States, 1920 1119 48 



Chinch bug, outbreaks in 1921 1103 11-15 



Chloramins detection in milk and cream, bulletin by Philip Rupp. 1114 1-5 



Chokecherry, adaptability for shelter-belt planting 1113 10, 15 



Chrysoplatycerus sp. , parasite of mealybug 1117 3 



Citrus- 

 industry — 



damage from citrus scab 1118 1-2 



injury by scab 1118 1-2 



mealvbug, control in Florida, bv natural means, bulletin by 



A. T. Speare .' 1117 1-19 



nursery stock, injury by scab 1118 3, 28 



scab — 



cause and control, bulletin by John R. Winston 1118 1-39 



infection, relation to climatic conditions 1118 13-20 



spp., susceptibility to scab 1118 3 



spraying for scab, experiments and directions 1118 27-34 



stock, relation to scab infection 1118 21 



Cladosporium citri, cause of citrus scab, characteristics, etc 1118 8-11 



Clastoptera obtusa, enemv of mistletoe, note 1112 34 



CoAD, B. R., C. C. McDonnell, and C. M. Smith, bulletin on 

 Calcium arsenate, "Chemical changes in calcium arsenate dur- 

 ing storage " 1115 1-28 



Cobb, F. E., and Robert Wilson, bulletin on Shelter belts, 

 "Development of cooperative shelter-belt demonstrations on 



the Northern Great Plains " 1113 1-28 



Coconino Forest, pine reproduction, studies 1105 3-141 



Cold storage, apples, internal-browning, investigations 1104 1-24 



Colloids, soil — ■ 



distinction from noncolloids 1122 3 



nature, e\'idence from absorption data 1122 13-16 



Colorado — 



bean beetle, outbreaks in 1921 1103 32 



127, 30-35, 



lumber cut 1920, 1870-1920, value and kinds 1119] 44, 47, 



[ 54, 56, 58 



v.!olumbia cotton, origin and value 1111 35 



Cones, pine, injury by mistletoe 1112 27 



Conifers, native to Northern Great Plains, and introduced species, 



notes 1113 10-11, 14 



Connecticut, lumber cut, 1920, 1870-1920, value and kinds ^^{^48 ^56^^58 



Containers, calcium arsenate, relation to changes in storage 1115 3-27 



Cook, O. F., bulletin on Cotton, "One-variety cotton communi- 

 ties" - 1111 1-50 



Cooperation — 

 marketing — 



associations, origin, and rise 1109 5-9 



cranberries, methods, advantages, etc 1109 7-35 



