142 EXPEEIMENT STATION EECOKD. 



Analyses of materials sold as insecticides and fungicides, C. S. Cathcart, 

 11. L. Willis, and W. H. Pearson {New Jersey Stas. Bui. 262 {1913), pp. 3- 

 ii).— This bulletin contains analyses of some 50 samples of various materials 

 examined by the station in 1913. They include products sold as Paris green, 

 lead arsenate, Bordeaux and lead arsenate mixtures, Bordeaux mixtures, zinc 

 arsenite, Electro Bordo Pulp, lime-sulphur solutions, and atomic sulphur. 



Making a garden of small fruits, F. F. Rockwell {New York, 1914, pp. 56, 

 pis. 8). — ^A small practical treatise for the amateur gardener. 



Currants and gooseberries, E. F. Palmer {Ontario Dept. Agr. Bui. 222 

 {WlJf), pp. 36, figs. 22). — This bulletin discusses the extent and importance of 

 the currant and gooseberry industries of Ontario and describes the most ap- 

 proved methods of culture for the home garden and commercial plantation. 



Propagation of the seedless breadfruit, P. J. Wester {Philippine Agr. Rev. 

 [English Ed.], 7 {1914), No. 3, pp. 97-99, pi. 1, fig. 1).—A method of propa- 

 gating the seedless breadfruit by root cuttings is here described. This method, 

 which consists of propagating the cuttings in a bed of sand or sandy loam, has 

 yielded over 75 per cent of healthy plants. 



Cacao culture in Samoa, E. Demandt {Tropenpflanzer, Beihefte, 15 {1914), 

 No. 2-3, pp. IX-\-135-307, figs. 54). — A practical treatise on the establishment, 

 care, and management of cacao plantations in Samoa, including information rela- 

 tive to insect pests and diseases of cacao, working plans, and cost and yield data. 



New researches into some statistics of Coffea, P. C. van der Wolk {Ztschr. 

 Incliiktive Aistam. u. Vcrerhungslelirc, 11 {1914), ^'o. 4- PP- 355-359, fig. 1). — 

 A further report on the author's biometric study of fluctuating variability in 

 leaf length and internodal length in coffee plnnts (E. S. R., 30, p. 534). 



Fruits of a date palm in the tertiary deposits of eastern Texas, E. W. 

 Berry {Amer. Jour. Sci., 4. ser., 37 {1914), No. 221, i)p. 403-406, figs. 2).— This 

 comprises a note on the recent discovery of the fossil fruits of a species of date 

 palm in the tertiary deposits of eastern Texas. 



The present state of olive growing in Italy, F. Bracci {Intemat. Inst. Agr. 

 [Rome], Mo. Bui. Aiffr. Intel, and Plant Diseases, 4 (1913), No. 10, pp. 1496- 

 1502). — A brief survey of the olive industry in Italy, including statistics of 

 production and notes of various conditions which have tended to decrease the 

 production during the past 30 years. 



Chestnut breeding experience, W. Van Fleet {Jour. Heredity, 5 {1914), 

 No. 1, pp. 19-25, figs. 9). — This comprises a popular account of the author's 

 work in breeding chestnuts during the past 20 years. The native species were 

 used to a considerable extent in the earlier work, but these were later aban- 

 doned owing to the advent of the chestnut bark disease in 1907. Selection work 

 was then continued with self- and chance-pollinated individuals of the chinqua- 

 pin and certain Asiatic types. 



Of the hybrids which have been secured, trees having Castanea americana in 

 any combination have nearly all disappeared. The crosses of Asiatic and 

 native chestnuts showed a greater blight resistance than crosses of European 

 and native nuts. The chinquapin-European hybrids are readily affected by 

 blight but have great recuperative powers, bearing nuts the second year on 

 suckers springing from the bases of diseased stems. Chinquapin-native crosses 

 are very susceptible as a rule and do not recover readily. The wild chinquapin 

 itself appears measurably resistant. The Asiatic chestnuts and the chinquapin- 

 Asiatic hybrids are plainly highly resistant. Few have shown any appearance 

 of infection and when noticeable the injury is quite local in character. Second 

 generation seedlings of chinquapin-c»'c«ota crosses show no disease at all 

 though always exposed to infection. 



Some of the more promising chinquapin hybrids are illustrated and described. 



