Periodical Literature. 85 



ceeds more slowly ; the spruce regeneration vanishes if more light 

 is not given soon. 



That this consideration of growth conditions in regeneration 

 tends also under other conditions to good results is attested by 

 accounts from other sites and with other species. The saving in 

 planting cost, if even only half covered by this method would be 

 a great gain. The author figures planting (16 labor days) with 

 transplants at $20 to $25 per acre ; sowing in spots, strips or 

 plats, $4 to $5 ; cutting out too dense sowings $2 per acre (3 labor 

 days), so that sowing could be done cheaper, than planting, and 

 natural regeneration still more so. 



Die Waldwirtschaft von Professor Wagner. Allgemeine Forst- und 

 Jagdzeitung, 1908, pp. 353-356. 



In a long article Flury gives account of the 



Damage damage done throughout Switzerland by an 



by unusual fall of snow, which occurred on 



Snow. May 23-24, 1908, which, it is estimated, 



broke some two million cubic feet. The 



largest previous heavy breakage occurred in 1885 with nearly 



nine million cubic feet. 



The details, character and probable causes of the extraordinary 

 fall of snow are discussed. 



From answers to circulars, the following more generally inter- 

 esting facts were elicited. Deciduous forests suffered the great- 

 est damage, conifers only exceptionally, and pure stands more 

 than those mixed with conifers. The more uneven crown de- 

 velopment and hence uneven loading of the broadleaved trees is 

 adduced as a reason for this difference in behavior. Curiously 

 enough, the tough oak and ash, outside of the softer woods, suf- 

 fered the most. As reason is suggested a difference of pliability 

 of branches at different seasons. Our White Pine was noted as 

 most resistant. 



The damage was experienced in all age classes, in the older 

 timber uprooting being most frequent, together with breakages, 

 in the younger stands breakage and bending, more rarely up- 

 rooting. The greatest damage was concentrated on altitudes 

 between 1,500 and 2,000 feet; the steepness of the slope in- 

 creasing the damage. Exposure seems not to influence the dam- 

 age. 



