Periodical Literature. 95 



dustry still prefers the stouter sizes. For the future, it is just 

 as possible that the difference may still further decrease, as that 

 the price of stout material should rise disproportionately to the 

 smaller dimensions. Mixed forest is the prevailing type in 

 Baden ; here the species most prevalent determines the rotation ; 

 yet, that does not exclude the cutting of areas earlier, if on the 

 whole the stand could not remain advantageously through the 

 higher rotation. In other words the normal forest formula is 

 only a safety regulator, not a law, silvicultural considerations and 

 needs of the owner allowing deviations. 



Several tabular statements show the distribution of rotations 

 among the species and localities, especially altitudes. 



On poorest soils pine forest is managed in 80 to 90 year rota- 

 tions ; otherwise site quality does not influence the choice of ro- 

 tation, but altitudes over 2,000 feet, where mostly spruce with fir 

 is found, bring the rotation up to 120. A small acreage of less 

 than 6,000 acres located in mild climate is managed in 140 year 

 rotation with a view of growing heavy oak timber. A 120 year 

 rotation for pine in mixture with oak and beech in low altitude 

 is justified by the production of high priced quality "equaling the 

 pitch pine" (our Longleaf). Some 25,000 acres of fir, largely 

 mixed with pine and oak are also managed under 120 year rota- 

 tion with a view of utilizing the "light" increment. A reduction 

 to 100 years might be advisable but the data to prove this as well 

 as the influence of thinnings on a reduction of rotation are 

 wanting. 



As to the actual existence of normal stock corresponding to the 

 assumed rotations, it is admitted that the booked age class dis- 

 tribution shows deficits in areas in the first two (1-40 years) 

 and the fifth age class (80-100), but this does not argue as to 

 the volume of stock. Since most of the stocktaking is done by 

 estimate, there is considerable uncertainty. Although estimates 

 are usually below the truth very likely deficiency exists, since the 

 snow damage of 1886-7 nas ma de havoc even in the middle age 

 classes. The author, however, thinks the data on hand are good 

 enough to trust the increment statements as given above to be 

 nearly correct i. e. a deficiency in ni and in nv. 



And now comes a statement which our young foresters should 

 consider specially and ponder: "From the private owner's stand- 

 point it would perhaps be correct to manage each separate state 



