191-9] FORESTRY. 449 



Firewoods: Their production and fuel values, A. D. Websteb (London: T. 

 Fisher Unicin, Ltd., 1919, pp. 95, j}ls. 8, figs. 3).. — This work deals particularlj' 

 with the firewood problem in Great Britain, The successive chapters discuss 

 sources from which fii'ewood may be obtained ; preparing the firewood ; com- 

 parative value of different firewoods, percentage of water, etc. ; heating proper- 

 ties of firewood — scented wood, etc. ; firewood value of various home-grown 

 woods ; firewood and faggots — storing, capacity, and price ; charcoal wood, 

 charcoal burning, comparative value of wood for charcoal, returns from char- 

 coal ; charcoal wood for gunpowder ; and wood fires and grates. Tabular data 

 on the weight of firewood, cord measurements, and prices, together with the 

 State fuel wood order, issued by the London Board of Trade in 1918, are in- 

 cluded. 



Germination trials with Hevea seed, J. G. J. A. Maas {Ai'ch. Rubbercult. 

 Nederland. Indie, 2 {1918), No. 9, pp. 666-725). — Experiments were started to 

 determine the cause of speedy loss of germinative power in consignments of 

 Hevea i-ubber seed and the best method of preserving and shipping the seed 

 to ob\'iate rapid deterioration. 



The results thus far secured indicate that all measures adopted in the pre- 

 serving and dispatch of seed should be directed toward preventing the seed 

 from drying up, as they dry quickly and thus lose a large proportion of their 

 germinative power. The fermentation of seed packed in closed cases is also 

 a source of injury. 



Inetructions are given for preparing and handling the seed in transit, in 

 storage, and in the nursery. 



Wound curing and healing- v/ith Hevea trees, P. E. Keuchenius {Arch. 

 Rubbercult. Nederland. Indie, 2 {1918), No. 9, pp. 639-665, figs. J5).— Wounds 

 in cases where the bark was totally pared off recovered more quickly than 

 where the bark was not wounded down to the cambium (ordinary tapping cuts). 

 Totally pared bark, however, retards retapping operations as compared with 

 partly wounded bark, because in partly wounded bark there always remain a 

 certain number of lactiferous layers intact which may be tapped sooner, even 

 though the renewed bark is thinner than the renewed bark of a totally pared 

 off wound. These results indicate that in cases of canker infection paring should 

 only be sufficiently deep to remove all traces of the infection. See also a 

 previous note (E. S. R., 40, p. 448). 



The time after which renewed bark, either on a superficial wound or on a 

 wood wound, becomes tapable again can not be given in general terms, be- 

 cause trees differ in the number of latex rings formed in a given time. Ex- 

 periments in the chemical treatment of wounds showed that recovery was ac- 

 celerated by 43.5 days by treating the wounds with a solution of 0.25 gm. of 

 calcium chlorid and 0,25 gm, magnesium chlorid in 100 cc. of water. Treat- 

 ment with distilled water also gave good results. Directions are given for 

 treating and bandaging wounds. 



Progress report of forest administration in Baluchistan for 1917—18, 

 MuHAMiiED Afzal {Rpt. Forest Admin, Baluchistan, 1917-18, pp. l6]-\-20). — 

 The usual report on the administration of the State forests in Baluchistan for 

 the year ended June .30, 1918. Data relative to alterations in forest areas, 

 yields in major and minor forest products, miscellaneous work, revenues, ex- 

 penditures, etc., are appended in tabular foi'm. 



Annual report on the forest administration in Ajmer-Merwara for the year 

 1917-18, Shambhoo Datt Joshi (Ann. Rpt. Forest Admin. Ajmer-Merioara, 

 1917-18, pp. 26). — A report similar to the above on the administration of the 

 State forests in Ajmei'-Merwara. 



