TABLE OF CONTENTS. 



INTEODUCTION 



PART I.— FOREST MENSURATION 3 



Chapter I. — Instkuments used ix Forest Mensuration . . . 6 



1. Instruments for the INIeasurement of the Girth . . 6 



2. Instruments for the Measurement of the Diameber . 7 



3. Instruments for the ]\teasurement of the Diameter 



Increment ......-• 12 



4. Instruments for the Measurement of the Length of 



Felled Trees and Logs 14 



5. Instruments for the Measurement of the Height of 



Standing Trees 14 



6. Instruments for the direct Measurement of the 



Volume 26 



Chapter II. — SIeasueement of Felled Trees . . .28 



1. Volume of the Stem 28 



2. Volume of Branch and Root Wood . . . .32 



3. Volume of the Bark 34 



Chapter III. — Measurement of Standing Trees . . . .35 



1. Ocular Estimate 35 



2. Estimate of Volume by means of Form Factors . 36 



3. Estimate of Volume by means of Volume Tables . . 39 



4. Measurement of Standing Trees by Sections . 40 

 Chapter IV. — Determination of the Volume of Whole Woods . 43 



Section I. — Measurements Extending over the Whole Wood . 43 



A. Measurement of all Trees 43 



B. Determination of Volume by means of Sample, or Type, 



Trees 43 



I. The Height is a Function of the Diameter . . . 45 



1. Description of the General Method . . . .45 



2. Modifications of the General Method . . . 52 



a. Draudfs Method 54 



1). Urich's :\rethod > . . .... 57 



c. Robert Hartig's IMethod 59 



3. Determination of Volume by means of Form Factors 



and Volume Tables 61 



4. Comparative Accuracy of the Several IMethods . 63 

 IL The Height is not a Function of the Diameter . 64 



