ARBORICULTURE 



109 



of bleak Cape Cod. Yet all of it will 

 grow trees. 



Now let statisticians figure out how 

 many acres can be maintained in cotton 

 to find a profitable market. An increase 

 of ten per cent, area beyond what is now 

 devoted to this staple will surely bring 

 the price down to below a profit. In the 

 same manner estimate what area can be 

 used for each and all of the minor crops 

 for which this belt of territory is adapted, 

 and it will be found that a very large 

 majority of these areas of the (uilf and 

 Atlantic Coasts must remain im])r()durt- 

 ive of farm crops. 



Forest products are in demand in the 

 world's markets, while the sujiply will 

 never again equal the demand. Examine 

 the forest resources of the various coun- 

 tries of the world, and you will iind that 

 ver\- few localities have a sur])lus of tini- 

 l)er for exjiort. Uritish America and the 

 LInited States have the largest areas. an>'. 

 they are being rapidly reduced. Twenty 

 years hence, at the present rate of clear- 

 ing, the United States will be out of the 

 market unless an era of forest planting 

 upon a very extensive scale shall be 

 (|uickly developed. 



Thus we conclude that under no cir- 

 cumstances could the production of for- 

 ests in all this coast region become so 

 great as to influence the revenue injuri- 

 ously. 



China, Africa, the greater part of 

 South America are treeless ; Ja])an has 

 no wood to spare ; Russian forests are 

 mostly inaccessible. The excellent sys- 

 tem of forest management of Cermany 

 may sustain her manufactories from her 

 woodlands. Other nations of Europe 

 must import largely of wood. 



Will the South make an effort to su]i- 

 ply the enormous demand for timber 

 which must come when the yellow ]nnc 

 forests have ceased to exist? 



TRANSVERSE TEST OF CATALPA 

 SPECIOSA. 



The ITniversity of Nebraska has made 

 a test of the transverse strength of Ca- 

 talpa, using a post 3.5 inches in diameter 

 and eight years' growth. The ])ost was 

 supported at each end and the load ap 

 plied in the center. The post was turned 

 and bent in a different manner each time. 

 After bending the post eight times, the 

 distance between the supports was short- 

 ened and the ])ost bent as before. After 

 bending it three times in this manner, we 

 found it was impossible to break the pos' , 

 but it slivered like a brush. 



rirst l-lciidiiii^, I'tnir l-cct Bcf-cvccii Siif^- 

 ports. 

 No. Load. 



I I,T12 



2 79( ) 



3 850 



4 730 



5 740 



6 750 



7 680 



8 710 



Second Bciidii . Two J'cct Bctzvccii Sup- 

 ports. 

 No. Load. 



9 1'Soo 



10 1.230 



II 1 ,000 



Deflection, 4.5 inches. 

 This test is a confirmation of the tes'. 

 mack' at tlie World's Fair in the Ma- 

 chinery Ifall, tlie wood ])ulling apart like 

 two paint brushes. Ai-kii, 10, 1906. 



The trade of the United States with 

 Panama is showing a very rapid growth, 

 and will amount to approximately $12,- 

 000,000 in the fiscal year which ends 

 with June, 1906. The total trade in tlie 

 fiscal year 1905 was less than $6,000,000. 



