Abstract: New and improved, mechanically self-resonant apparatus and method for the non-invasive mixing of materials are disclosed, and comprise vibrator means including container means for the materials to be mixed, and drive means to drivingly vibrate the vibrator means. Sensor means are operatively associated with the vibrator means and the drive means, and are operable to sense the frequency of vibration of the vibrator means and maintain that frequency at or near the resonant frequency of the vibrator means. This promotes thorough mixing of the materials, and minimizes the energy input required for vibrational mixing of the materials. Control means are provided to control the amplitude of vibration of the vibrator means at or near the resonant frequency to avoid damage to the materials attendant mixing. The container means may take the form of a conduit through which the materials to be mixed are flowing attendant vibrational mixing.

Abstract: Apparatus for permanently and protectively mounting "wet" thin sections of biological specimens on microscope slides, wherein each specimen is initially bathed in a low-volatile solvent containing a low concentration of first polymerizable material. Such solvent is allowed to evaporate, whereby the liquid polymerizable material permeates and protects the specimen. Following solvent evaporation, a second polymerizable material is layered over the specimen. Preferably, the first and second polymerizable materials comprise a mixture of low-volatility, low-viscosity, liquid acrylic reactomers and a U.V. light-sensitive catalyst system. A conventional cover slip or other planar transparent member can be positioned over the polymerizable materials, and the same are polymerized by exposure to U.V. radiation. The first and second now-polymerized materials encapsulate the specimen on the microscope slide, become integral and completely hardened and are fully devoid of any solvent.

Abstract: Apparatus and method for permanently and protectively mounting "wet" thin sections of biological specimens on microscope slides, wherein each specimen is initially bathed in a low-volatile solvent containing a low concentration of first polymerizable material. Such solvent is allowed to evaporate, whereby the liquid polymerizable material permeates and protects the specimen. Following solvent evaporation, a second polymerizable material is layered over the specimen. Preferably, the first and second polymerizable materials comprise a mixture of low-volatility, low-viscosity, liquid acrylic reactomers and a U.V. light-sensitive catalyst system. A conventional cover slip or other planar transparent member can be positioned over the polymerizable materials, and the same are polymerized by exposure to U.V. radiation. The first and second now-polymerized materials encapsulate the specimen on the microscope slide, become integral and completely hardened and are fully devoid of any solvent.