Sergey
== Description == '''Sphygmograms, Figs. 5–8''', matching the illustration on H. P. Blavatsky's Scrapbooks, volume 12, page 221, item 1. Complete group of four traces and all four original figure labels, continuing John E. Purdon's article. The gap in Fig. 7 is already present in the source and the album; it has not been joined or reconstructed. The group is retained as one composition. The artist and engraver are not established here. This is a separate scanned impression;...
