6 DEPARTMENT OF AGRICULTURE, BULLS. 76-100. 



Department Bulletin 87. — Flumes and Fluming — Continued. page. 



Planing mills should be located at lower end of flume 27 



Size and carrying capacity of flumes for different classes of material 27 



Cost of transporting different classes of material 29 



Cost of construction 30 



Distance between bents 31 



Advisable method of nailing 32 



Department Bulletin 88. — The Control of the Codling Moth in the 

 Pecos Valley in New Mexico: 



Introduction 1 



Experiments in the Sherman and Johnson orchard 2 



Places of entrance of fruit by codling moth larvae 5 



Recommendations based on the foregoing results 7 



Department Bulletin 89. — The Death of Chestnuts and Oaks Due to 

 Armillaria Mellea: 



Introduction 1 



Character of the timber examined 1 



Character of data obtained 1 



General condition of the chestnut 2 



General condition of the white oak 4 



Armillaria mellea on chestnuts, oaks, and poplars 4 



General discussion of the diseased chestnuts and oaks 6 



Area infected by armillaria mellea 7 



Armillaria mellea on chestnuts in North Carolina 7 



Conclusions 9 



Department Bulletin 90. — The Rose Aphis: 



Introduction 1 



Recent records 1 



Description 2 



Distribution 4 



Character of injury 4 



Habits 5 



Life history and reproduction in California 5 



Life history and reproduction in the greenhouse 8 



Life cycle in California 9 



Natural control 9 



Experiments with remedies 12 



Department Bulletin 91. — Cost and Methods of Clearing Land in the 

 Lake States: 



Introduction 1 



Methods of clearing 5 



Cost of clearing land 10 



Disposal of stumps after pulling 23 



Summary and suggestions 24 



Department Bulletin 92. — Destruction of Germs of Infectious Bee 

 Diseases in Heating: 



Introduction 1 



Diseases of the brood of bees 2 



Diseases of adult bees 5 



. Summary and general remarks 8 



Department Bulletin 93. — The Temperature of the Honey-bee Cluster: 



Introduction 1 



The influence of external temperature on heat production 3 



The effect of confinement and the accumulation of feces 6 



Methods of heat production and conservation 13 



