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Abstract
A method is described for embedding and sectioning hard, undecalcified bone, which is designed for use by technical personnel. Bone fixed in a variety of ways is progressed through alcohols to ether-alcohol and then infiltrated with ether-alcohol solvented plastic (plasticized nitrocellulose) by a combination of centrifugation and high pressure embedding technics. The ether-alcohol is evaporated in a partially closed container in a manner similar to that employed in celloidin embedding, but differs from the latter by the removal of all of the solvent. Celloidin is the source of nitrocellulose and Amoil-S, the added plasticizer. Undecalcified adult bone of all types is readily cut at a thickness of 5–8μ on a heavy duty sliding microtome. The sections are then mounted on gelatinized slides. The procedures for preparing strip film radio-autograms of bone sections and subsequent staining of the preparation are given. The results obtained are illustrated.
