﻿4 DEPARTMENT OF AGRICULTURE, BULLS. 1-25. 



Department Bulletin No. 12 — Continued. Page. 



Red maple 48 



Drunimond maple 49 



Silver maple 49 



Broadleaf maple 52 



Box elder 54 



Vine maple : 56 



Department Bulletin No. 13. — White Pine under Forest Management. 



Suitability of white pine for management 1 



Geographical range 2 



White pine and the lumber industry 4 



General characteristics of white pine stands 7 



Silvical characteristics 10 



Second-growth white pine as an investment 24 



Management 35 



White pine for windbreaks and reservoir protection 47 



Planting and sowing white pine 47 



Protection 59 



Appendix 64 



Department Bulletin No. 14. — The Migratory Habit of the Housefly 

 Larvae as Indicating a Favorable Remedial Measure. An 

 Account of Progress. 



Introduction 1 



The migratory habit 2 



The bearing of the migratory habit on the problem of control 5 



Summary 10 



References to literature 11 



Department Bulletin No. 15. — A Sealed Paper Carton to Protect 

 Cereals from Insect Attack. 



Economic importance of the problem - 1 



Preliminary observations 1 



Experiments in California 2 



Where infestation takes place 4 



Drying the cereal 6 



The sealed carton 6 



Packages other than sealed cartons 7 



Summary 8 



Department Bulletin No. 16. — The Culture of Flue-cured Tobacco. 



Introduction 1 



Soils of the flue-cured district 3 



Crop rotation systems 5 



Fertilizers for flue-cured tobacco 10 



Varieties of flue-cured tobacco 16 



Selection and care of seed plants 17 



Preparation and care of seed bed 18 



Early and late planting compared 20 



Preparation of the soil for transplanting 21 



Cultivation of the growing crop 25 



Diseases and insect enemies ^ 



Topping and suckering 27 



Harvesting 28 



Curing and handling 30 



