Enclosures for the storage of photographic negatives are discussed. The importance of the quality of the material in immediate contact with the photographic negative is stressed. If either the composition of the material of the structure of the enclosure is faulty then irreversible damage could be done to the negative. The desirable characteristics of a negative enclosures are considered before critically appraising existing products. A four-flap enclosure is recommended and line drawings explain its construction. The choice of either alkaline or neutral paper depends on the type of negative being protected. List of us based suppliers and a reading list. Photographs. Enclosures for the storage of photographic negatives are discussed. The importance of the quality of the material in immediate contact with the photographic negative is stressed. If either the composition of the material or the structure of the enclosure is faulty then irreversible damage could be done to the negative. The desirable characteristics of a negative enclosure are considered before critically appraising existing products. A four flap paper enclosure is recommended and line drawings explain its construction. The choice of either alkaline or neutral paper depends on the type of negative.