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Sheep and wool photographs

Subseries contains 135 photographs and 3 paintings. Some of these photographs have attached newspaper clippings, pamphlets, postcard, or article. Graphic materials depict sheep and lambs of various breeds in various farms, pastures, and exhibition events. Additionally, there are photographs of members of sheep related associations and businesses taken between 1940-2002.

Soil conservation and sustainable agriculture

File is an audio reel containing an episode of Earth Action, a radio program broadcast on CKDU radio 88.1. The episode aired on April 22, 1993, and was rebroadcasted on April 23, 1993 on The Evening Affair, CKDU's evening public affairs radio program.
Solar heating at the P.E.I. Ark : [manuscript]

Solar heating at the P.E.I. Ark : [manuscript]

Item consists of an offprint of the paper "Solar heating at the P.E.I. Ark", written by Kenneth MacKay, Director of the Ark Project, originally published in "Solar Energy: Bringing it down to Earth: The Proceedings of the Solar Energy Society of Canada Inc., 1979 National Conference".

Abstract: "Both active and passive solar heating systems are employed at the P. E. I. Ark. An active drain-down system, which stores heat in water located in 70,000 litre concrete tanks, supplies heat to the living area. Domestic hot water is heated by a thermosiphon drain-down solar system coupled to a wood cookstove. Environmental design of the Ark allows for maximum use of passive solar energy. The passive system supplies the majority of the heating load on sunny days, while wood stoves supply the back-up heat. The performance of the active system has required high maintenance because of problems in the mechanical and electrical systems. This, coupled with the high initial cost, has not made the system cost effective. The 178m2 commercial greenhouse uses a hybrid system with both active and passive systems. The active system employs a fan to draw air through rock storage. The passive system employs the high thermal mass of the deep soil beds, a concrete slab, and most importantly, 53,200 litres of water in translucent tanks. These tanks are then used for fish rearing and are the basis for a solar hatchery. The greenhouse has performed very well, producing crops year round since 1976."

Soviet Union and agriculture

File includes translations of Russian-language newspaper articles and reports and issues of the Institute for the Study of the USSR's Analysis of Current Developments in the Soviet Union.
Space Age Ark, Brand New Home : [clipping]

Space Age Ark, Brand New Home : [clipping]

Item consists of a clipping from the November 1977 issue of Chatelaine, titled "Space Age Ark, Brave New Home", written by Constance Mundell, about a visit to the Ark project in Spry Bay, Prince Edward Island.

Spraying - R25

Item is a photograph of spraying in Nova Scotia in the early 20th century. Photograph is a reproduction of a glass slide that may have been taken by Nova Scotia Agricultural College professor Fred C. Sears, original R25.

Spraying - R26

Item is a photograph of spraying in Nova Scotia in the early 20th century. Photograph is a reproduction of a glass slide that may have been taken by Nova Scotia Agricultural College professor Fred C. Sears, original R26.

Spraying - R27

Item is a photograph of spraying in Nova Scotia in the early 20th century. Photograph is a reproduction of a glass slide that may have been taken by Nova Scotia Agricultural College professor Fred C. Sears, original R27.

Spraying - R28

Item is a photograph of spraying in Nova Scotia in the early 20th century. Photograph is a reproduction of a glass slide that may have been taken by Nova Scotia Agricultural College professor Fred C. Sears, original R28.

Stuart Hill on organic agriculture

File is an audio reel containing an episode of Earth Action, a radio program broadcast on CKDU radio 88.1. The episode features Stuart Hill, previously a professor at McGill University who established Ecological Agriculture Projects, on organic agriculture with Chris. The episode aired on July 21, 1988, and was rebroadcasted on July 25, 1988.
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