“A selection of 51 Slides, made from the original instantaneous negatives of Professor Muybridge. Of these 51 subjects we keep stock, and in addition can supply slides from any of the other subjects in this celebrated collection to special order (for which purpose a descriptive list will be sent on request). Each of these slides contains on the average 24 distinct instantaneous pictures shewing the several stages of the pace or movement dealt with, and as these transitional phases can be compared with each other at leisure the purpose served is complementary to that of the ordinary kinematograph (of which Professor Muybridge's invention was the great forerunner). The kinematograph, from a series of little negatives, reproduces Motion synthetically, whereas in these slides animal motions are analysed and the various successive phases of them presented side by side in a most interesting and instructive manner.”