12 The Principles of Vegetable -Gardening 



ana, Tennessee and Kentucky, tributary to north central and 

 northwestern cities. 



8. Southwest district: Texas, Arkansas, Missouri and Kan- 

 sas, largely tributary to St. Louis and Kansas City. 



9. Central district: Ohio, Indiana, Illinois, Michigan, Wis- 

 consin, Iowa and Nebraska. 



10. Northwest district: Minnesota, North Dakota and South 

 Dakota. 



11. Mountain district : Idaho, Wyoming, Utah, Nevada, 

 Colorado, New Mexico and Arizona. 



12. Pacific Coast district : California, Oregon and Washington. 



3. THE EXTENT OF VEGETABLE - GARDENING 



There are no detailed figures of the extent of our 

 vegetable -gardening industry. The best are those made 

 ten years ago by the Eleventh Census and published in 

 Bulletin 41 (March 19, 1891), by J. H. Hale. These 

 figures show that upwards of $100,000,000 were invested 

 in truck -farming, and the product for 1890, after pay- 

 ing freights and commissions, amounted to $76,517,155. 

 Five hundred and thirty -four thousand four hundred 

 and forty acres of land were devoted to the industry, 

 and this required the labor of 216,765 men, 9,254 

 women, 14,874 children, and 75,866 horses and mules. 

 The value of the implements employed was $8,971,206. 

 Yet, great as this industry was, the greater part of it 

 had developed within the last thirty years. 



It is to be expected that the Twelfth Census will 

 show large gains over these figures. The acreage of 

 truck crops was distributed as follows, according to 

 the Census of 1890: 



