SVLVICULTUKE. 



Elm, 24 lbs. 

 Birch, 32 lbs. 

 Firs, 45 lbs. 

 Spruce, 10 lbs. 

 Larch, 10 lbs. 

 Yellow Pine, 8 lbs. 

 White Pine, 12 lbs. 



C. Small seeds: Number of seeds in one pound (approximately, 

 all coniferous seeds without wings) : 



Ash 6,200 



Elm 55,000 



Silver Fir 9,000 



Tamarack 70,000 



White Pine 30,000 



Maple 5,000 



Birch 80,000 



Spruce 56,000 



Yellow Pine 70,000 



D. Large seeds: Number of seeds in one bushel are: White 

 Oak, 8,000; Red Oak, 3,000; Walnuts, 800. 



Paragraph XIV, Season for seed planting on open ground. 



For Oottonwoods, Elms (excepting Red or Slippery Elm), Soft 

 Maple, Black Birch and Mulberry, the best time of planting is 

 nature's time, — immediately after the fall of the seeds — in early 

 summer. In the case of the species enumerated, the period of rest 

 is very short and the seedlings starting rapidly have time to lig- 

 nify before winter. In all other cases the forester can plant either 

 in fall or in spring. Planting in winter is usually prevented by 

 the condition of the soil. 



A. Planting in fall invites: 



I. Inroads of animals in winter. 



II. Washing of seed when snow melts. 



III. Damage from late frost, since planted seeds sprout early 

 in spring. 



B. Spring planting necessitates: 



I. Expense for seed storage over winter. 



II. Checks during storage, injurious to germinating percentage. 



III. Higher expense for planting, planting taking place at a 

 time when labor is scarce. 



Spring planting forms the rule, except with Fir, Beech, Chest- 

 mrt, White Oak. 



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