440 EXPEEIMENT STATION EECOKD. 



acre, and the average cost of px-oductiou in 1906 as TA cents per pound. The 

 average selling price is 1(H cts. per pound. The text is well illustrated. 



Home grown tea, (i. F. Mitchell {Tea and Coffee Trade Jour., 13 (1907), 

 yo. 2, pp. 76-80, figs. '/). — This is a reproduction of a Farmers' Bulletin on the 

 same subject recently published by the author and noted (E. S. R., 19, p. 240). 



Breeding hardy strawberries, N. E. Hansen and 0. Haralson {South Da- 

 kota gta. Bui. 103, pp. 218-265, figs. 20). — In 1894, an experiment was begun at 

 the Iowa Station hy the late .1. li. Budd, assisted by N. E. Hansen, in improv- 

 ing the wild strawberry of Manitoba by crossing with standard cultivated varie- 

 ties. The experiment was subset^uently dropped, as it was found (E. S. R., 10 

 p. 47) that although the I'esulting hybrids were hardy the fruit was too small 

 to compete with standard market varieties. Owing to the general complaint 

 as to the lack of hardiness of standard varieties in the Northwest prairie 

 regions,, however, this experiment has been continued and enlax'ged at the South 

 Dakota Station, with a view to producing varieties perfectly hardy without 

 winter protection of any kind. An account is given of the work conducted at 

 the station along this line. 



Native varieties were brought together from different sections in the North- 

 west and grown w'ith a large number of cultivated varieties with a view of 

 comparing their relative hardiness. Of the cultivated varieties Princess, War- 

 field, Clyde, Enhance, Tan Deman, Bederwood, Bisel, Seaford, and Glen Mary 

 made the best showing in the order named. None of these varieties, however, 

 were as hardy as the native wild strawberry. An attempt has been made to 

 improve the latter both by hybridization and selection. 



Out of several thousand hybrid seedlings 225 were saved for further trial and 

 have since been largely reduced in number. Only 2 have been sent out for pre- 

 liminary trial, South Dakota No. 1 and South Dakota No. 2. Extracts from the 

 reports on these varieties show that they are of pro«Qise only where standard 

 varieties suffer from the cold winters. A large number of derivative hybrids 

 have also been made between the primary hybrids and choice cultivated varie- 

 ties. About 100 primary hybrids, together with 22 of the more promising sec- 

 ondary hybrids are shown in a series of plates with notes on their parentage. 



Breeding experiments with the wild strawberry of Alaska have been startetl, 

 as a result of which several hundred vigorous hybrid seedlings came into bear- 

 ing this year. The wild Alaska strawberry is larger than the native North- 

 western prairie strawberry. 



In addition to the work at the station a list is given of commercial varieties 

 grown in the southeastern part of the State, with notes on their value, repre- 

 senting the experience of leading commercial growers in A'ermilion, together 

 with notes on varieties and methods of culture in the Black Hills, by F. L. Cook. 

 Introductory remarks deal with how new strawberries are invented, perfect 

 and imperfect strawberry blossoms, pedigree strawberry plants, historical notes 

 on wild American strawberries, origin of our cultivated strawberries, and winter- 

 killing. 



Raspberries, blackberries, and dewberries, N. E. Hansen and C. Haralson 

 {South Dakota Sta. Bui. lO), pp. 26G-297, figs. 15). — In this bulletin a series of 

 15 plates is given illustrating the work in raspberry l)reeding at the South Da- 

 kota Station, in which are shown over 140 seedling varieties that have proven 

 hardy without protection. The text of an address on breeding hardy raspber- 

 ries for the Northwest, delivered before the American Breeders' Association 

 (E. S. R., 18, p. 940), is reproduced, the classification of raspberries is briefly 

 discussed, and notes are given on a large number of varieties of raspberries, 

 blackberrie.s, and dewberries tested, including hybrid raspberries produced at 

 the station with special reference to hardiness. 



