440 AVOOD-DEPOTS. 



of this deduction being ascertained by experiment and averaging 

 the seventh or eighth part of the length of each stack. Wherever 

 the firewood is arranged in sale-lots, its measurement simply 

 consists in counting the latter. 



4. lu'i/istration of the Heceipts of Wood at a Depot. 



It is quite obvious that in all wood-depots an account must 

 be kept of all the receipts of wood both as regards volume and 

 quality. The volume of the timber and of the stacks of firewood 

 is ascertained in the usual manner. A further allowance has, 

 however, to be made for the loss incurred during the transport 

 of the material, which also naturally involves measurement of 

 the wood before it was transported. Wherever wood has been 

 carefully transported by land, the loss is either inconsiderable or 

 absolutely nil, but when wood has been dragged over rough 

 ground, or thrown downhill, &c., there maybe a considerable loss 

 of volume during transport. Loss during transport by water 

 may also vary between and 10 or 12'/^. It is also 

 obvious that the volume of the sunken wood which has been 

 recovered should be deducted from the loss during floating, and 

 that any losses occasioned by careless land-transport previous to 

 floating must be excluded from loss due to floating alone. 



The following circumstances influence the loss of floating 

 wood: — the condition of the works on a floating-channel ; its 

 length ; the kind of wood floated and its comparative dryness ; 

 the manner in which the wood is stacked in the forest, and in the 

 depot ; the question whether wood has been brought down to the 

 launching place on slides or roads ; also extraordinary occurrences 

 such as floods, theft, kc. 



