l2G4 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



Grape- juice, a simple method for home manufacture, and some useful 

 recipes. — C. H. C. 



Grape, The, in Oregon. By Professor E. R. Lake (U.S.A. St. Bd. 

 Hort. Oregon Beport, 1901, p. 209 ; illustrations).— Soil and location, 

 planting, varieties, cultivation, pruning and training, pests, &c. are treated 

 of. Many varieties are described, with dates of maturity &c. The paper 

 is of course chiefly valuable to local growers, but good information is 

 given. Illustrations show the fruiting Worden vine, fruiting Niagara 

 vine, fruiting Concord vine, all in fourth year; also a stump-trained 

 vineyard and the pole trellis system of training. 



It appears that the '• Black Hamburgh,' ' Sweetwater,' and * Muscat ' 

 are not well adapted to the climate.— V. J. M. 



Growth without Oxygen (Beih. Bot. Cent. xiii. ht. 3 and ht. 4). 



Herr A. J. Nabokich discusses his experiments and answers the 

 criticisms of Professor Dr. Wieler (who replies in the second paper) and 

 others. 



His method of culture is by growing Sunflower hypocotyls in flasks 

 which have been exhausted by an air-pump and then sealed (the medium 

 having been heated in a vacuum or in a water-bath). 



The researches given in this paper show that a very distinct elongation 

 is perceptible in the absence of oxygen, but that practically no effect is 

 produced by traces of oxygen (less than 0-06 per cent.). The effects of 

 temperature, of the individuality and character of the mother plant, of 

 the duration of the experiments, and of the use of sugar solutions or 

 water in the experiments are investigated by series of experiments. He 

 also found that when seeds are germinated in an atmosphere deprived of 

 oxygen a reduction of nitric acid is observed, although bacteria are 

 absent from the substratum and the seeds. The chief interest of the 

 paper lies in showing that the anaerobic method of life followed by many 

 bacteria can also be adopted on emergency by the cells of the higher 

 plants.— G. F. S.-E. 



Guatemala, Undescribed Plants of. By J. D. Smith (Bot. Gaz. 

 xxxv. No. 1, p. 1). — This consists of full descriptions of thirteen new species 

 of as many genera, including Zamia Tucrckheimii (Donn.), Sm., of which 

 a double plate is given. — G. II. 



Hamamelis japonica. By A. Kort (Rev. Hort. Beige, xxviii. No. 3, 

 p. Gl). — The author refers to II. arborea, Ott. ; H. ptersica, DC. (or 

 tia j>rrsica, C. A. Mey). The above species has insignificant flowers, 

 appearing in October. A figure of H. japonica var. Zuccariniana is 

 given. — G. II. 



Hamamelis mollis. By Sir J. D. Hooker (Bot. Mag. tab. 7884).— 



Nat ord. Hama/meUdea. Native of China. Only three species are known, 

 //. virginiana, Eastern U.S. ; II. japonica of Japan. This is a large 

 1'M^h or small tree, 30 ft. in height. Leaves 4-5 ins. long, orbicular- 

 ol.ovntc. V lower- heads sessile ; calyx tomentose ; petals £ in. long, golden- 

 yellow.— G. 11. ' • 



