No. 4, February, 1922] FORESTRY 249 



Himalaya area, Chota Nagpur, Orissa, and Burma. This tree occurs scattered in high dense 

 forests, grows very slowly, and pollards less vigorously than most other lac host trees. Culti- 

 vation by the natives is unintelligent, and, as high lac prices lead to excessive harvesting, 

 the brood lac supply is depleted. Methods of controlling the infection of new host branches 

 or trees by new broods are particularly haphazard and their study and improvement is 

 urgently needed. Quality of lac varies with host and insect, season, and locality. Present 

 practices are described in detail and suggestions for improved practice and needed investi- 

 gation are given. — C. L. Hill. 



1647. Mueller, M. L. Kiln drying more lumber on the Pacific Coast. Intercoll. Forest. 

 Club Ann. 1: 35-37. 1921. 



1648. MtJLLER. Forstliche Mitteilungen aus dam preussischen Soiling. [Forest informa- 

 tion from the Prussian Soiling.] Zeitschr. Forst- u. Jagdw. 51: 225-247. 1919. — The author 

 describes the geology, climate, forest, hunting, and chief administrative features of the forest- 

 inspection district of Hildesheim -Soiling and of the adjacent state forests of Northeim, 

 Moringen, and Einback, which include approximately 36,035 hectares. The forest in this 

 district is 60 per cent beech, 30 Norway spruce, and 10 oak. The principle aim is to perpetuate 

 the beech, which is increasingly valuable. On the Bunter sandstone formation, which pre- 

 dominates in the Soiling, good masts alone produce results, and these occur, on an average, 

 every 8 years. The failure of reproduction on sandstone is due to destructive fungi, which 

 thrive in insufficiently decomposed leaf humus. Failure to secure beech reproduction natu- 

 rally has led to a system of seed fellings based on 4 preparation fellings extending over 20 

 years, a seed felling, and final cuttings. It is preferred that the soil litter decompose natu- 

 rally, but advantage should be taken of good seed years, and the humus should be raked into 

 piles often or the soil treated by harrowing, plowing, grazing swine, etc. In the preparation 

 cuttings, protection of the stand against too great opening is more important than removal 

 of forked and other undesirable trees. [See Bot. Absts. 9, Entry 187 and following entry.] — 

 J. Roeser. 



1649. MtJLLER. Forstliche Mitteilungen aus dem preussischen Soiling. [Forest informa- 

 tion from the Prussian Soiling.] Zeitschr. Forst- u. Jagdw. 51: 301-307. 1919. — The present 

 method of establishing oak in the beech forests of Prussian Soiling, selected after much experi- 

 menting, is by dibbling under beech stands at the time of the regeneration cutting or during 

 beech seed years. The previously used Martzfeld method proved too expensive. The oak 

 is allowed to start up with the beech reproduction, which prevents its destruction by game 

 (a serious menace to oak reproduction in this region), and advance beech saplings are cut 

 down to avoid interference with the oak. Wherever dominant oaks are found in the Soiling 

 in equal-aged mixture with beech, 2 facts are evident: The site is sunny and the species is 

 Quercus sessiliflora. On cool, shaded sites the oak is always suppressed. Q. sessiliflora 

 succeeds better than Q. pedunculata since it has a shallow root system, thrives in shallow soil, 

 and mixes better with beech. Planting in rows or groups is preferable to single planting 

 because (1) oak is for sentimental reasons favored in cutting, contrary' to the best economic 

 interests, and (2) when the stand is opened the trees develop trunk sprouts and invariably 

 become stag-headed. — J. Roeser. 



1650. Nelson, J. C. Beam's trees of Indiana (revised edition). [Rev. of: Deam, Chas. 

 C. The trees of Indiana. First revised edition. Dept. Conservation Indiana Publ. 13. 

 S17 p., 134 pi. 1921.] Rhodora 23: 179. 1921.— This is a brief account of the most note- 

 worthy changes which have been made in the revision. — James P. Poole. 



1651. Oertzen, von. Erfahrungen aus dem Walde. [Experiences from the forest.] 

 Zeitschr. Forst- u. Jagdw. 51: 39^1. 1919. — The author discusses the habits and value of 

 blueberry (Vacciniujn myrtillus) and of heather, and the factors entering into hardpan for- 

 mation. — /. Roeser. 



