Periodical Literature 523 



holds also as regards cost under given conditions, although the 

 cost difference is not so great as the time difference. 



The common square method is, then, practically applicable only 

 when not enough personnel is at disposal, for it can be worked with 

 3 as against 4 and 5 men, the latter for strip method. The strip 

 method is recommended where saving of time and cost is desired, 

 especially in pure stands where, therefore, no differentiation by 

 species is needed. Here the circle method is only advantageous by 

 giving closer knowledge of dimensions. In mixed stands, if the 

 admixture is very tmeven or the species of very different value, 

 the circle method is desirable. 



The strip method is applicable with special satisfaction in large 

 areas, where it is a great time saver. In very open stands, with 

 uneven distribution of trees, the circle method is preferred. The 

 same on steep slopes, locating along contours, while the strips 

 should here be laid across contours which is fatiguing. For good 

 work and to sectue its advantages, the strip method requires 5 men. 

 If these are not available, the circle method is preferable. 



As regards the use of the German volume tables in Hungary, 

 some 184,000 trees were measured and compared with the voltmie 

 tables. The difference in the total volume was only — .6 per cent, 

 and the extreme deviations for the three species (beech, oak, fir) 

 differentiated into three size classes lay between +6.5 per cent and 

 — 6.1 per cent, but the total volumes without size differentiation 

 differed only as follows: beech, — 1.1 per cent; oak +.5 per cent; 

 fir — 1.9 per cent. AppHed to stands of varying stock density, for 

 open stands (.4 to .7), the actual volume differed by +2.9 per cent 

 from the volimie tables; in complete stands (.8 to 1), — 1.9 per cent. 

 The conclusion is reached that the volume tables are applicable 

 also to Hungarian conditions. 



The time saving in using the tables as against sample trees in the 

 sample area methods was found from 40 to 50 per cent, and the 

 saving in cost from 40 to 60 per cent. 



Versuche aus dem Bereiche der Holzmesskunde. Centralblatt fur das 

 gesammte Forstwesen, July-August, 1915, pp. 241-54. 



