Abstract: The thermal stability testing apparatus includes a closed test chamber for containing a sample of material that is to be heated by an electrical heater; weight lost by the sample during the heating operation is a measure of the thermal stability of the material. A motor-operated exhaust fan is provided for removing gaseous products of combustion generated during the sample heating operation.

Abstract: A phonograph record album used to present promotional music and song recordings to professional artists and writers, comprised of a first compartment for holding a phonograph record, and a coplanar second compartment for holding an information card, with the second compartment having serpentine side guide strips for maintaining lateral alignment of the card as it is moved into and out of its compartment, and flat springs attached between the bottom side of the second compartment and the card to prevent complete removal of the card from its compartment. In an alternate embodiment, the album is comprised of a separable information packet for containing the information card.