QUESTIONS 69 



7. Compare coldframes, manure hotbeds and fire hotbeds in reference to 



their suitability for starting plants in cold weather. 



8. What points of advantage have greenhouses over all other glass structures? 



9. Compare the two types of manure hotbeds. 



10. Describe the preparation of manure for hotbeds. 



11. How soon after a manure hotbed is made, may seed safely be planted in it? 



12. Describe the construction of the frame for a manure hotbed. 



13. Describe the method of constructing a fire hotbed. 



14. Describe the construction of a cloth-covered coldframe. 



15. How may the temperature be controlled in various kinds of glass struc- 



tures? 



16. What are the objects of ventilation in greenhouse and hotbed management? 



17. Give directions for the watering of plants under glass. 



18. Can you describe the special structure of hotbeds, coldframes, or green- 



houses in your vicinity? 



