Abstract: A system and method of extracting elements from an aqueous stream are described herein. The method includes designing a process to extract at least two elements from the aqueous product stream. The at least two elements have different commercial values. The process is optimized to minimize a cost of extracting the at least two elements and to maximize a value of extracting the at least two elements. The method further includes extracting the at least two elements according to the process.

Abstract: The disclosed jack assembly has an elongated structural beam of sufficient length to extend between and beyond the two rails of a railroad track to be supported on top of the rails. A compact power lift cylinder, in the form of a multiple-sleeve power cylinder, is connected to the beam; and a car engaging plate is coupled to the power lift cylinder, to be moved in a direction transverse to the beam. The silhouette of the beam, power lift cylinder and plate is low, when the power lift cylinder is contracted, to allow them to be fitted with clearance to a lifting position, under a railroad car with the beam extended across the track rails and the car engaging plate vertically aligned under the railroad car frame. The power lift cylinder has a power stroke sufficient to lift the overlying railroad car enough above the rails to remove the railroad car completely from one wheeled truck assembly, for replacement or the like.

Abstract: Certain 2-(3-pyridyl) thiazoles are useful for the control of insects, and are particularly effective against aphids. Many of these thiazoles are new compounds.

Abstract: Tetrasubstituted organotin compounds, which are useful for controlling insects and other pests and which also exhibit herbicidal activity, are disclosed. Many of these organotin compounds are new compounds.

Abstract: Substituted thiophenes of the following formula, some of which are new compounds, are useful in controlling certain pests, particularly mites: ##STR1## wherein A, Y and Z are various substituents such as phenyl and substituted phenyl.

Abstract: Tetrasubstituted organotin compounds, which are useful for controlling insects and other pests, are disclosed. Many of these organotin compounds are new compounds.

Abstract: Sulfites derived from alkynols and glycol ethers of phenylphenols are provided which are useful as insecticides and acaricides and which exhibit substantially reduced phytotoxicity than similarly used compounds. This invention also deals with the use of the novel sulfites in treating plants.

Abstract: Certain 2-(3-pyridyl) thiazoles are useful for the control of insects, and are particularly effective against aphids. Many of these thiazoles are new compounds.

Abstract: An anchor unit is described for releasably securing bases used in baseball, softball and the like at their appropriate position on a playing field. This unit is normally for permanent installation and yet permits periodic conditioning, e.g., dragging, of the surface of the field. The anchor is useful with any standard base, and that portion which engages the base retracts below the ground level when not in use. The anchor unit is comprised of an elongated hollow tubular body member having one of its ends closed by a cap. The cap is provided with a central aperture which receives a rod which extends into the body member and longitudinally along the longitudinal axis thereof, one end of the rod being in the interior of the body member while the other end of the rod extends outwardly of the body member adjacent the cap and forms a base strap engaging loop. A spacer disk is attached to the end of the rod interiorly of the body member.

Abstract: Compounds having either of the structures ##STR1## have strong acaricidal activity, in which R is a phenyl or naphthyl group, or phenyl with certain designated substitution. Thus, mites may be controlled on such crops as cotton by applying such compounds as 2-(1-naphthyl)benzothiazoline or 2-(5-t-butyl-2-hydroxyphenyl)benzothiazole.

Abstract: New sulfites derived from alkynols and glycol ethers of phenylphenols are provided which are useful as insecticides and acaricides and which exhibit substantially reduced phytotoxicity than similarly used compounds. This invention also deals with the use of the novel sulfites in treating plants.

Abstract: Compounds having either of the structures ##SPC1##Have strong acaricidal activity, in which R is a phenyl or naphthyl group, or phenyl with certain designated substitution. Thus, mites may be controlled on such crops as cotton by applying such compounds as 2-(1-naphthyl)benzothiazoline or 2-(5-t-butyl-2-hydroxyphenyl)benzothiazole.