APPENDIX A cm 



in many cases make possible the utilization of-timber now going to 

 waste on account of the freight costs of shipping the wood in the round. 

 It also makes possible the conversion of certain forms of wood waste 

 into pulpwood which can be utilized at a profit. There is at the pres- 

 ent time a prospect that this method of utilizing waste will be taken 

 up by at least one concern in Canada in the very near future. 



Chemistry of Wood. 



Some very interesting and important work has been done on a 

 study of the chemical constitution of wood of various species, particu- 

 larly those suitable for pulp making. A new method for the deter- 

 mination of cellulose has been brought out which has advantages over 

 the older methods both in accuracy and in application to industrial 

 work. Considerable new light has been thrown on certain phases of 

 the chemical constitution of wood. 



Fence Posts. 



A batch of Russian poplar fence posts were treated with pre- 

 servative at the laboratories and put into a service test with similar 

 untreated posts under the supervision of the Forest Nursery Station, 

 Indian Head, Saskatchewan. 



Oils for Ore Flotation. 



Owing to the demand for pine oilfor ore flotation at Canadian 

 concentrators and the rapidly rising price of this oil (which is all 

 imported), a special investigation was undertaken to find, if possible, 

 a Canadian substitute. Results to date tend to show that it will be 

 possible to substitute at least for Cobalt ores, certain fractions of oils 

 which are by-products of little value obtained in hardwood distillation. 

 Little promise is shown by the oils obtained by distillation of Cana- 

 dian red pine stumps. 



Durability of Wood. 



Experiments have been in progress for some time to ascertain 

 the relative durability of Canadian woods and also to study the fungus 

 relations of Douglas fir. None of these experiments have yet reached 

 a stage where any conclusions can be drawn. 



Fibre Measurements. 



Authentic information regarding the fibre lengths of diftereni 

 species is of considerable scientific and industrial value. Mcasure- 



Proc, Sig. 8 



