SCHKDULES AND SAMPLE RECORDS. 



FORMS USED IN THE INVESTIGATION. 



FORM NO. 1. 



United States Department of Agriculture. 



DIVISION OF FORESTRY. 



RECORDS OF TREE MEASUREMENTS. 



Name of collector : N. 

 Species; White Pine. 

 Year: 1897. 



GENERAL HESCRIPTIoN Of STATION. 

 [Deni'teil by capitiil letter.] 



Till' liimbii- operation 

 staudiuK limliiT iu a 



State: Pennsylvania. County: Clearfield. Town: Dubois. 

 Longitude: 78^ 45'. Latitude: 41° 3'. Altitude: 1,200 to 1,500 feet. 

 General couliguration: Plains lulls plateau muunlainoiis. 

 General trend of valleys or bills: (Not noted.) 

 Climatic features: (Meteorological tables furnisbed.) 



General forest conditions of the region: This region in 187G extended o;-er 20,000 acres, 

 carrie.l on lor twenty years by Mr. Du Bois left for the present only from l,oOO to 2,000 acres 



primeval condition. ^ , , ., , 



Tliree typical forms of forest conditions are suggested to the observei: , f , , 



(1) lleililock and \Vbite Pine forest, witli an admixture of mature hardwoods and a number of young hard- 

 woods and vouii"- Hemlock, which form tlie undergrowth. , .. 1 J 

 "^""''V] Hemlork niixed ^yitll White Pine, xyitli scattering hardwoods: the undergrowth usually moderately dense, 

 consists main! V of vouu" Hemlock witli the admixture of young hardwoods, 

 consists >j'a''>;>^.;^'_^^>; intermixed with White Pine and scattering Hemlock. The undergrowth here consists mainxy 



°^ ^°l"^on"lire' hardwoods, tlie Oak, Birch, and Maple form the staph, of the hardwood forest, while '^'J'A 

 Chestut Hickory Cucumber, Ash, Cherry, and Hasswoo.l aiv comp;.rative ly lew in number. I lie re^gion ha.s a 

 unUbim soil and s^ibsoil as it inay be judged by the sample areas NN. 5, (i, and 7, and is well proyided with moisture 

 by the many streams crossing it all over in dillereut directions. 



173 



