572 Forestry Quarterly 



not be run, as many of them follow open roads and trails surveyed 

 during the course of the topographic work, and corners of the 

 same are either placed at or oriented with a traverse station, still 

 marked on the ground. Most of the ridge lines will, however, 

 have to be run. Concrete posts are being used experimentally for 

 corner markers, although it will be unnecessary at this time to 

 mark every corner. The posts are 4"X 4"X 24" long and are 

 set 18" in the ground, allowing 6" above ground. The cost of 

 making the posts averages less than 15 cents each. They weigh 

 about 30 pounds. 



Topographic field work has been completed on two other 

 Forests, namely, the Bear Meadows and the Seven Mountains 

 Forests in Centre County, and maps thereof are now under con- 

 struction. The Bear Meadows survey was made by Forester W. 

 D. Ludwig, assisted by Topographer Walter Leach. It includes 

 21,000 acres of State land. The Seven Mountains Forest, con- 

 taining 14,000 acres, was surveyed by Forester W. E. Mont- 

 gomery, assisted by Topographer H. W. Siggins. 



Topographic field work on three other Forests will, no doubt, 

 be completed by the end of this year. They are the Greenwood 

 Forest in Huntingdon County, the Penn Forest in Centre County, 

 and the Kishacoquillas Forest in Mifflin County, containing 

 respectively 23,000, 15,000 and 34,000 acres. 



The six Forests above mentioned are contiguous and comprise 

 an area of approximately 125,000 acres, which is one eighth of 

 the total area of State Forests. The surveys must necessarily 

 include considerable privately owned land made up of scattered 

 tracts entirely or partly surrounded by State land. It is prob- 

 able that this will amount to 7,000 acres, which would bring 

 the total area surveyed by the end of the present year to 132,000 

 acres. 



In addition to the above, two surveys were begun in late sum- 

 mer and should be completed by the middle of next summer. 

 They are those of the Jacks Mountain Forest in Snyder County, 

 containing 18,000 acres, and the Pennypacker Forest in Perry 

 County, containing 25,000 acres. W. G. C. 



On the Pacific slope in the country west of the Rockies the 

 dangerous winds which, during the summer, are likely to cause 

 wide-spread and destructive fires, commonly result from high 



