Periodical Literature 555 



upon this is placed a layer of selected, dry acorns about 2^ 

 inches thick ; these are then covered with more leaves and 

 branches to protect them from wind. When the winter has set 

 in for good and the snow no longer melts, if it has not fallen in 

 sufficient quantities, it is piled up to a depth of 2 feet on the place 

 where the acorns are buried ; then a layer of straw 7 to 10 inches 

 thick is spread over the snow, and the acorns are left until the 

 spring. From 10 days to a fortnight before the time of sowing, 

 the acorns are uncovered and left either in the clearing or on 

 the place where they are to be sown till they begin to germinate. 

 It is best to make several of these deposits of acorns upon the 

 same area and to uncover them one after the other as required. 



This method is the most satisfactory, in the writer's opinion, 

 because it does not entail all the precautions necessary for pre- 

 venting the acorns heating and rotting and for protecting them 

 from frost ; further, by the aid of this system, the largest per- 

 centage of well-preserved acorns fit for sowing is obtained with 

 the smallest outlay. R. Z. 



Liesnoi Journal, Year XLV, 1915, Part 1-2, pp. 255-259. 



MENSURATION, FINANCE AND MANAGEMENT 



A new set of carefully constructed yield 



Yield and tables of the beech is issued by the Badish 



Assortments Experiment Station, compiled by Wimmer. 



of Beech These tables are based in part on the same 



areas that served for the yield tables of 



Schuberg compiled 20 years ago. They are therefore of interest 



in showing changes due to changed management. They also have 



a special interest on account of the assortment differentiation and 



money yield tables. Altogether, 39 yield areas from 60 to 160 



years old, and 22 thinning experiment plots have been measured 



six to seven times in intervals of mostly five years. Since 1875, 



there have been 273 surveys made. 



Although the basal areas of the stands have been considerably 

 reduced (from 160 sq. ft. to 120, or from 140 to 104 sq. ft.) below 

 what was considered normal, indicating severe thinning, the total 

 yield, it is stated, has not been influenced by the degree of thin- 



