64 REPORT OF OFFICE OF EXPERIMENT STATIONS. 



Bulletin 129, pp. 3^, pis. 3, figs. 6 2. — Report on the Condition of Olive 

 Culture in California. — This gives the results of an investigation of 

 the causes of depression in the olive industry in California, discussed 

 under the headings of (1) cultural conditions, including improper 

 selection of soils and neglect of tillage, irrigation, pruning, and fight- 

 ing diseases and insect pests, and (2) commercial conditions, including 

 competition with cotton-seed oil and other oils sold as olive oil, poor 

 harvesting and manufacturing methods, and the selection of unsuita- 

 ble varieties. Pickling olives and preserving the product from bac- 

 terial growths are discussed at some length. 



Bulletin 130, j } P- !%-> fi9 s - 4- — Preservation of Unfermented Grape 

 Must. — The composition of pure grape must and of the products some- 

 times found on the market is discussed, as well as the causes of spoil- 

 ing of grape juice, and the chemical and physical means of preventing 

 fermentation. 



Bulletin 131, pp. 16, fig. 1. — The Phylloxera of the Vine. — A brief 

 historical review of the gradual distribution of phylloxera in European 

 countries, and its subsequent importation into California, together 

 with notes on the life history and habits of the pest and a discussion 

 of remedial measures. 



Exchange Seed List No. 5, pp. 11. — A list of seeds of economic 

 plants offered for exchange, and a list of seeds desired by the station. 



Annual' Report, 1898, pp. 367, pis. 25, figs. 31^. — This contains the 

 organization list of the station; a financial statement for the fiscal year 

 ended June 30, 1898; a brief review of station work by the director; 

 discussions on preparatory teaching in agricultural colleges and on 

 farmers' institutes; reports on the examination of samples of soil 

 from different parts of California, and studies of the endurance of 

 drought in soils of the arid region and of moisture in California soils 

 during the dry season of 1898; a study of the accumulation of alkali 

 in irrigated soils used for the culture of citrus fruits, and the effect of 

 this alkali upon the growth of these fruits; analyses of a large num- 

 ber of samples of soils, waters, feeding stuffs, and sugar beets; a dis- 

 cussion of the use of saline and alkali waters in irrigation; physical, 

 food, and ash analyses of 7 varieties of apples grown in different parts 

 of the State; determinations of the nicotine content of 11 varieties of 

 tobacco grown at the station; a discussion of the nutritive value of des- 

 iccated vegetables, including analyses of evaporated potatoes and car- 

 rots; determinations of the sugar content of fresh and canned apricots; 

 results of investigations relating to the materials used in the manufac- 

 ture of cans, and to methods employed in canning food products; data 

 concerning the physical and chemical properties of salad oil; notes on 

 tests of various antiseptics; results of investigations undertaken to 

 study the effect of sunlight in conserving storage water from bacterial 

 contamination; brief notes on the olive knot and on the California 



