11(32 EXPERIMENT STATION RECORD. 



Northern limit of the papaw tree, C. A. White {Science, n. ser., 23 (1906), 

 No. 593, pp. 749-751)- — A discussion of the distribution in the United States of the 

 papaw (Asimina triloba), persimmon, and pecan. 



Packing- seeds for the Tropics, J. H. Hart (Gard. Chron., 3. ser., 39 (1906), No. 

 1010, pp. 275, 276).— The author calls attention to the necessity of packing seeds 

 intended for the Tropics in dry air and in tinfoil packets in order to preserve their 

 ability to germinate. He cites an instance in which English peas imported into 

 Trinidad in ordinary packets gave a 95 per cent germination when first sown. The 

 sowing a month later gave 75 per cent. At the third sowing, 30 days later, the 

 percentage of germination was 40, and at the fourth sowing the percentage of germi- 

 nation was but 20. 



Suitability of New South Wales timbers for railway construction (Indian 

 Forester, 32 (1906), No. 2, pp. 74-77).— This is a review of the report of the forestry 

 branch of New South Wales for 1904-5. 



It appears that the timber area of commercial value in New South Wales is about 

 20,000,000 acres, or 10 per cent of the area of the State. Up to 1904 about 7,503,200 

 acres of the forest area had been examined and reserved from sale. The value of the 

 timber exported has risen from $225,145 in 1895 to $794,230 in 1904. Ironbark is 

 used largely for piles, trains, girders, and transoms of bridges because of its strength 

 and durability. Tallow wood, gray and red gum, blackbutt, and Sydney blue gum 

 for decking and light scantling, and turpentine and ironbark for jetty and pier work. 



Under favorable conditions ironbark has lasted 40 years as bridge timber, and 

 turpentine piles have been found perfectly sound after standing 40 years in salt 

 water. It is stated that Australian hardw T oods last much longer in the track than* 

 the timbers commonly used in Europe and North America. 



Report on the turpentine industry in the United States, Bell (Dijrfo. and 

 Cons. Rpts. [London'], Misc. Ser., No. 647, pp. 17).— A report on the turpentine indus- 

 try in the United States by the British commercial agent, the data for which are 

 largely based on the reports of the U. S. Department of Agriculture. 



DISEASES OF PLANTS. 



Notes on miscellaneous diseases, K. Malkoff (Ghodishen Otchet Drzhavnata 

 Zeml. Opltna Stantzlya Sadovo, 2 (1904), pp> 156-233 [German Summary], pp. 19-22, 

 pis. 3). — Notes are given on a number of diseases and insect injuries of economic 

 plants. 



Among the subjects treated are the spot disease of chick-peas due to Ascochyta pisi, 

 wdiich the author says may be controlled with Bordeaux mixture; the control of 

 plum pockets with 3 per cent Bordeaux mixture; combating rose rust w 7 ith Bordeaux 

 mixture; the brown rot of plums (Monilia fructigena) ; a bacterial disease of mulber- 

 ries; the use of Paris green, tobacco extracts, etc., against insects; and critical notes 

 on plant diseases observed in Bulgaria in 1904. 



Laboratory notes," T. W. Kirk (New Zeal Dept. Acjr. Ann. RpL, 13 (1905), pp. 

 405-428, pis. 19, figs. 5). — Brief descriptive notes are given on a number of diseases 

 of plants. Among them are a disease of Swedish turnips (Phoma napo-brassiea |, 

 apple and pear canker (Neetria ditissima), apricot coral spot (N cinnabarina), onion 

 mildew (Peronospora schleideni) , bean anthracnose (Colletotrichum Undemuthianum), 

 broad bean rust (Uromycesfabie), hollyhock rust (Puccinia mcdvacearum) , a number 

 of diseases of roses, club root of cabbage (Plasmodiophora brassicx), etc. 



Contribution to the life history of some TJredinese, E. Fischer (Centbl. Bakt. 

 [etc.], 2. Abt, 15 (1905), No. 7-8, x>p. 227-232).— -Notes are given on Pucciniastrum 

 padi and Puccinia liliacearum. 



Investigations on the stinking smut of wheat and its control, K. Malkoff 

 (Ghodishen Otchet Drzhavnata Zeml. Opltna Stantz'iya Sadovo, 2 (1904), PP> 139-149, 



