1. in table 8.3 the velocity of Castor oil at 25°C must be around 1470 m/s, not 14774 m/s as shown in the paper.
2. In water the velocity does not change linearly with temperature: starting at freezing point the velocity increases up to the maxium of 1557 m/s at 74°C, then it decreases with temperature up to the boiling point. At 35°C water has a longitudinal velocity of 1520 m/s, not 1516 m/s as given in the paper. The following table gives the correct results for water:
3. In steels (unalloyed and alloyed) the temperature coefficient for longitudinal and transverse waves is between -0.4 m/s°C and -0,7 m/s°C in the range from 0° up to 600°C, e.g. much smaller than given in the paper (2 m/s°C). So in practice the change of steel velocity with temperature is negligible, whereas it is not with plastics and fluids.