No. 3, April, 1921] PHARMACOGNOSY 297 



2068. Miller, David. Leaf-stem gall-aphis of the poplar. New Zealand Jour. Agric. 

 21: 134-135. 1920. — The occurrence of this insect (Pemphigus populitransversus) in Central 

 Otago, N. Z., is recorded. The leaf and the root forms were found and life history obser- 

 vations show the habits to be essentially the same as in North America. — N. J. Giddings. 



2069. Peyronel, Beni amino. Alcuni casi di rapporti micorizici tra Boletinee ed essenze 

 arboree. [Some mycorhizal relations between Boletineae and woody plants.] Staz. Sperim. 

 Agrarie Ital. 53: 24-31. 1920. — A short contribution to the study of ectotrophic mycorhizae. 

 Mycorhizal relations were observed between Larix decidua and Boletus elegans, B. laricinus,. 

 and Bcletinus claviceps, and between Populus tremula and Boletus rufus, by following the 

 mycelial strands through the soil from the fruiting body of the fungus to the root of the 

 higher plant and also by microscopical examination. An extensive literature list is appended. 

 — A. Bonazzi. 



2070. Stevens, Neil E., and A. H. Chi vers. Fanning strawberries in relation to keeping 

 quality. Phytopath. 9: 547-553. 1919.— The authors find that fanning berries after picking, 

 although partially drying the surface and lowering the temperature from 1 to 2°C., does not 

 add appreciably to their keeping quality. The average quantity of sound berries at the end 

 of the storage period in 1919 was 50 per cent for the fanned and 53 per cent for the unfanned. 

 Temperature appears to be the important factor in shipping and storing soft fruits. Berriea 

 picked at 16 and 27°C. showed respectively 72 and 51 per cent sound berries. Brief discussion 

 of the fungi causing decaying of ripe berries is given. — J. G. Dickson. 



2071. Stokes, William Royal, and C. H. Douthirt. Practical disinfection of tubercu- 

 lous sputum. Amer. Jour. Public Health 10: 973-975. 1920.— The authors cite some experi- 

 ments which show that prompt effective disinfection of tuberculous sputum depends upon 

 dissolving the matrix of sputum to permit the disinfectant to reach the bacteria. — C. A. 

 Ludwig. 



2072. Stone, R. E. Kerosene injury to shade trees. Phytopath. 9: 476-477. 1919. 



2073. TiLLEY, F. W. Investigations of the germicidal value of some of the chlorin disin- 

 fectants. Jour. Agric. Res. 20: 85-110. 1920.— Presentation from the standpoint of general 

 disinfection in animal industry. — "In the present work, considered as a whole, there is seen 

 throughout more or less 'selective action' on the part of the various disinfectants. The 

 most clearly defined example of this is seen in the extremely high value of chloramin T 

 against Staphylococcus aureus as compared with its extremely low value against Bacillus 

 pyocyaneus." — "The results of the experiments upon anthrax spores show that the germicidal 

 action of chlorin compounds is not always so speedy as is commonly supposed but may extend 

 over several days." — "The addition of ammonia to solutions of chlorin or hypochlorites very 

 greatly increases germicidal activity and tends to prevent depreciation in value on the 

 addition of organic matter." — D. Reddick. 



2074. Vaughan, R. E., and M. Miller. Freezing injuries to potato tubers. Wisconsin 

 Agric. Exp. Sta. Circ. 120. 1919.— Popular discussion of frost necrosis. — R. E. Vaughan. 



PHARMACEUTICAL BOTANY AND PHARMACOGNOSY 



H. W. YouNGKEN, Editor 

 E. N. Gather coal, Assistant Editor 



2075. Anonymous. Agar production in U. S. Spatula 26 : 446. 1920.— The production of 

 agar from seaweeds, very abundant along the lower California coast, by modern machinery 

 and methods is now carried on at Glendale near Los Angeles. The production reaches 700 

 pounds per day. The imports from Japan in 1919 were approximately 250 tons. The use 

 of agar in bacteriologj', medicine, and food preparations is constantly increasing. — E. N. 

 Gathercoal. 



