Canadian Forestry Magazine, August-September^ 1920. 



407 



point in square to locate same on map. 



It may be here mentioned that care 

 must be taken when squaring- maps, to 

 divide each square separately in order 

 to follow curvature and variation of 

 latitudinal and longitudinal lines. The 

 accompanying photograph will serve to 

 illustrate the method more clearly. 



Suppose an aerial patrol, in reporting 

 an outbreak of fire, sends in by wireless 

 to the nearest station a message as fol- 

 follows: — "Fire 34-la-2b-5-4, you simply 

 look up sheet 34, square la, 2b, scale 

 latitudinally o graduations and longi- 

 tudinally 4 graduations pin point the 

 intersection of these lines, and you have 

 as near the exact location as possible. Of 

 course, it will be readily understood that 

 fire location will be more easily discover- 

 ed by airmen. 



By aerial ])]iotography, as used in 

 mapping out tlie war zone in France and 

 Ijelgium, mosaic maps will be made, and 

 will prove invaluable in correcting posi- 

 tions of lakes, rivers, etc., in imsurveyed 

 territories, but the whole operation de- 



pends upon accurate squaring of maps 

 not only as a guide to the airmen, but 

 in compiling and joining up of mosaic 

 maps. This method of making maps 

 etc., is as yet in its experimental stage in 

 regard to Canada, but there seems to be 

 no reason why it cannot be made a suc- 

 cess, given the right men to do this work. 

 However, this season, it is hoped, will 

 produce results which will be awaited 

 with great interest by many private com- 

 panies. 



Reverting to fire patrol by airplane, 

 immediately a fire is reported by the air- 

 man and map-location given, the Fire 

 Protection Association is notified; they 

 record same and despatch men to fight 

 the fire. Direction of such forest fires 

 sliould be observed and reported on from 

 time to time, and fire fighters guided as 

 to best means to combat same. 



Conventional signs denoting location 

 of the air harbour, aerodromes, supply 

 stations, etc., will l)e marked on the 

 mosaic maps as soon as same are de- 

 finitely located. 



Why Our Hardwoods Are Not Used For Best Furniture 



Readers of the Canarlian h^orcslry 

 Magazine have frequently inquired why 

 there is not a better market for Can- 

 adian hardwoods in furniture manu- 

 facture. The question was placed be- 

 fore Mr. J. R. Shorey, General Manager 

 of the Canada Furniture ^Manufacturers. 

 I>imited. \V(jO(lstock, Ontario, and the 

 following is lu's most interosting reply: 



"r.irch is really the only Canadian 

 liar(hv()ii(l tliat can I)o utilized in the 

 manufacture of belter grade furniture. 

 'Idle writer is (|uite well aware that the 

 ((uantity of standing wliile birch in 

 Canada is vitv large. Cn f(irliniatel\', 

 as it will net float, it is inaccessible. \\ 

 ]iresent the market price of birch lum- 

 ber is very high, owing to excessive de- 

 mand in the Cnited States for birch for 

 interior trim. 



"We. as furniture manufacturers, can 

 buy gumwood in the Southern Slates nnd 



bring it into Canada and utilize it in the 

 manufacture of furniture at a less price 

 than we can buy the native white birch 

 for, and taking it all in all. it is a prefer- 

 able wood, because it is easier to work 

 and susceptil)le to various tlnishes, where- 

 as birch can only be satisfactorily finish- 

 ed in the natiu-al or mahogany finishes. 



"I'irch is a strong and reliable wood, 

 and is really the only furniture wood 

 that is pnxluced in Canada. Maple, elm 

 and beech arc used for the manufacture 

 of low trades of funiiture. 



" riiere is no high grade furniture 

 made (»ut of birch. If you would make 

 a ]iiece of furniture out of birch an<I put 

 a lot o[ work on it. you would not sell 

 it in competition with mahogany and 

 w.dnnt. 



••(•\X\n\ FFRNTTrRF MWT 



!■ \< rrRi-.RS, i.rn., 



••j. R.. Shorey, 



"Mana''inu Direcl<M*." 



