30 



the tree, its location and its past growth. A single tree will 

 yield from 1 to 7 pounds of sugar per season, or expressed in 

 syrup of standard density, from 1 pint to 1 gallon, though the 

 average from year to year and from tree to tree is about 3 

 pounds of sugar or 3 pints of syrup. Expressing these data 

 in other terms, it is seen that in a normal year one barrel of 

 sap (32 gallons) should produce a gallon of syrup or 7V& 

 pounds of sugar. In many camps and for many years it takes 

 sometimes as high as 50 gallons of sap to make 1 gallon of 

 syrup. First runs of sap are generally richer in sugar, hence 

 take less for a gallon of syrup. From 6!/2 to 9 pounds of sugar, 

 according to the kind, can be made from 1 gallon of standard 

 syrup, with an average of 7% to 8 pounds. A camp of 100 

 trees should produce about 40 gallons of syrup or 300 pounds 

 of sugar during a season. 



Chinese Arbor Vitas. 



The Chinese arbor vitae is an evergreen tree, generally of 

 low, compact growth in its native habitat the dry, rocky 

 mountains of northern China. When planted in good soil 

 under favorable climatic conditions the trees attain a" height 

 of 60 feet and a trunk diameter of from 5 to 6 feet. They 

 reach their best development in a deep, fertile soil, and they 

 resist even a considerable amount of alkali. According to 

 Chinese observations, these trees are known to live to an age 

 of more than 2000 years. The old specimens develop a very 

 characteristic ragged and irregular outline, and are striking 

 objects in the landscapes in northern China. 



This tree thrives especially in those parts of China where 

 the summers are hot and fairly dry, with an annual rainfall of 

 between 15 and 25 inches, practically all of which falls during 

 the months of July, August and September. The summer 

 temperature in this region frequently reaches 110 degrees in 

 the shade, while in the mountainous regions, where the tree 

 grows under natural conditions, the winter temperature falls 

 to 10 degrees below zero. The Chinese arbor vitse will with- 

 stand a greater degree of cold than this if the winters are dry, 

 but will not endure the cold in moist climates. The soil, mois- 

 ture, and temperature conditions demanded by this tree prevail 

 throughout the western two-thirds of the state of Kansas. 



System of Management. The Chinese arbor vitse is a highly 

 intolerant tree, and the two-year-old seedlings or transplants 



