We have studied _the liquid crystal phase transitions of 4-hpentylbenzenethio.4'-n-octyloxybenzoate (8SS) as a function of pressure and temperature. There were no pressure induced anomalies. We measured the latent heat at the N-1 transition (.5*.1 calories/gram) but were not able to observe any evidence of a latent heat for both the A-N and C-A transitions. We speculate that the continuous nature of these transitions may be linked to the flexibility of the polar part of SSS.
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