“The following series of Slides is entirely new, and they are taken in colour direct from the object under Polarized Light. The brilliant colours shewn in the originals are as nearly as possible reproduced in the Slides. They are very transparent, and can be shown in conjunction with other slides.

They have been taken by T.E. Freshwater, F.R.P.S. The Slides should be very useful to the lecturer who wants to produce the effect of polarized light without the trouble of working the Polariscope.”