1920] • HORTICULTURE. 741 



vidiial.s had developed good root systems, whereas suckers on the outside of the 

 house, although alive, siiowed no sij^iis of root formation. 



Attention was j;iven during the year to the maintenance of an all-the-ycar 

 family garden at Yuma and on the university grounds at Tucson. The results 

 thus far secured indicate that with good cultivation and ample irrigation an 

 ample variety of vegetahles can be produced in the home garden during the 

 fall and winter months. Such plants as the tomato, eggplant, pepper, okra, 

 carrot, and the garden cowpeas were made to produce during the hottest portion 

 of the summer. Work is being conducted to defornune the value of spinach as a 

 commercial crop for southern Arizona. 



[Keport on horticultural work for the year ended March HI, 1J)1J)J, 

 "W. T. M.vcoiN KT Ai,. {Canada IJ.ipt. Farms Uid. JOl'J, pp. JJ,, 28, 29, 31, 03, 0<H, 

 122, 123, 130, 131, l.'iO, l-'t3, 11,4, 156, 157, 161, 110, 171).— In continuation of 

 previous reports (E. S. R., 41, p. 538), the horticultural work at the Central 

 Farm is briefly reviewed, and notes are given on cultural and variety tests of 

 fruits, vegetables, and ornamentals at the branch farms and stations. 



Horticultural statutes of the State of California corrected to November 

 1, 1919 (Sarrauioito, C'al: State Dcpt. of Af/r., lOli), pp. 17/,, pi. i).— The text 

 is given of California statutes and quarantine orders relating to horticulture. 



Rules and regulations governinm (1) entry for immediate export, 

 (2) entry for immediate transi)ortation and exportation in bond, and 

 (.'J) safeguarding; tlie arrival at a port where entry or landing is not 

 intended of prohibited plants and plant products (Washington: U. S. Dcpt. 

 Agr., Fed. Hort. Bd., Rules and Regulations, 1920, pp. 6). — This comprises rules 

 and regulations of the Federal Horticultural Board, effective on and after 

 August 1, 1920. dealing with the importation of plants and plant products. 



The Christ-Lucas garden book, F. Lucas (Christ-Lucas Gartcnbuch. Stutt- 

 gart: Eugen JJlmer, [1920], 21. ed., rev., pp. XII-.',68, pis. 2, figs. 286).— K general 

 guide to the laying out and management of house gardens and the culture and 

 care of flowers, ornamental plants, vegetables, fruit trees, and grapes, including 

 the care of house flowers. The appi-ndix contains a seasonal working calendar. 



The busy woman's garden book, I. D. Bennet (Boston: Small, Maynard 

 d Co., 1920, pp. XIV-\-33J,, pis. 6). — A popular treatise on vegetable and orna- 

 mental gardening. 



Vegetable gardening in Georgia, T. H. RIcHatton, J. W. Fiuor, and E. 

 Raosdalk ((7rt. State Col. Agr. Bui. 180 (1920), pp. 32. figs. 5).—X treatise on 

 home vegetable gardening, briefly discussing general principles and giving con- 

 cise cultural directions for growing all of the common vegetables, together with 

 a planting table. 



Transplanting investigations with vegetables, .T. T. Rosa. .ir. (i]//.sso»ri 

 Sta. Bui. 172 (1920, p. 3J,). — It has been found that the conditions of hardiness in 

 plants can be brought about as effectively by withholding moisture or by de- 

 creasing the supply of available plant food as by exposure to low temperature. 

 See also a previous note (E. S. R., 43, p. 643). 



Recent investigational work with the tomato, R. Wei.i.incton (Tnuus. 

 Peninsula Hort. Soc. \l)cl.\, 9 (1920), No. 3, pp. 73-76).— A contribution from 

 the Maryland AgriculLural College. The author discusses the superiority of Fi 

 tomato seed, cit(!s the results of various investigators substantiating the value 

 of Fi seed, and presents data along this line secured at the .Mimiesota Experi- 

 ment Station during the years 1911-18, inclusive. 



During this 8-year period, Fi seed of tjwarf-standard crosses averaged nearly 

 4 lbs. of fruit per plant more than the pl.-mts of the standard parents. In most 

 cases F, heed of standard-standard cros.ses have outyielded the average of Ihe 



