with the usual correction for the buoyancy of air. From the weights of the distillates and their densities, the density of the resulting mixture was calculated. As shown in the table the shrinkage in volume on mixing amounted to 0.23 per cent.A study was also made of the effect of mixing two distillates in various proportions. Figure 5 shows some results on mixing a light and heavy naphtha, which are typical of other binary systems of distillates that have been studied. The inspection data on the distillates that were mixed are as follows:

No abstract

Rightsholders' groups have given CLA approval to develop sector‐by‐sector licences for the digitisation of existing print material. The first two licences, for pharmaceutical regulatory submissions and for higher education, are approaching completion. Rightsholders will be asked to opt‐in to each of them and to determine applicable fees for each of their publications.