Minimal length of time to dehydrate carnivore heartsand kidneys was five days, which was achieved by daily changes of cold and room temperature acetone. These findings seem to correlate with the findings of Tiedemann and Ivic-Matijas (1988) who reported cold acetone penetration of tissue blocks to be 4-5 mm the first day with a maximum of 10mm in 4 days. Their experiments used tissue blocks while these carnivore specimens were entire organs whose maximum tissue
thickness was about 2.5cm. Ripani et al. (1994) suggested a markedly decreased dehydration time from the classic six weeks for parenchymatus organs (liver, spleen, kidney). They changed the cold acetone every other day and recommended a minimum of 3 to 4 baths for the best results. Their minimal length of dehydration time of six to ten days seems to correlate with our times. As well, Ripani et al. (1996) dehydrated rat organs, which are smaller than dog organs, in 48 hours