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While acting as agricultural expert for a company interested in the beet industry in Colorado, the attention of the writer was frequently drawn to the effect of the soluble-salt constituents of the soil (alkali) upon the sugar beet. On account of the fact that the general conditions which obtained in the irrigated regions are especially favorable to the production of high-grade beets, and since in such regions there are usually to be found many acres of land upon which these soluble salts appear in greater or less concentration and frequently have killed the normal vegetation, and especially because of much apparent contradiction in the action of these lands toward the sugar-beet crop, the writer became interested in attempting to determine the limits of tolerance of the sugar beet toward alkali, and it is as a contribution to this work that this bulletin is prepared, reviewing certain work which was conducted by the writer in 1900 at Grand Junction, Colorado, and extended during the summer of 1904 at Oxnard, California. PREVIOUS WORK IN CALIFORNIA. Certain investigators, notably Drs. Hilgard and Loughridge of this Station, and Professors Buffum and Slosson of the Wyoming Station, had already conducted some interesting and suggestive work upon the relation of alkali to sugar beets. Dr. Loughridge,* in discussing the toleration of alkali by sugar beets grown in three different localities, shows it to be: Sulfates. Carbonates. Chlorids. Nitrates. Total. * * prove beyond question that sugar beets of good and even high

Colore solo ab omnibus liujus generis facillimc distinguitur Scomber ruber. In mari Americano pracipue conspicitur, magnitudine, ut plurimum, sesquipedali. THE REDMACKREL. GenericCharacter.Head compressed, smooth.Gill-Membrane furnished with seven rays.Body smooth, carinated at the hind part by the lateral line.Spurious pinnules (in many species) towards the tail. SpecificCharacter.MACKREL with red body.This species is readily distinguished by its colour alone from all its congeners. It is chiefly found in the American seas, and grows to the length of about a foot and half

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