Featured on PDR in the collection Sekka Zusetsu: A Book of Snowflakes (1832)
Titled Sekka Zusetsu (雪華図説), this 1832 book of woodblock prints by Doi Toshitsura (1789–1848) reflects twenty years of a life devoted to “snow flowers” (sekka). An Edo-era feudal lord (daimyō), who ruled the Koga Domain in what is today’s Shimōsa Province, he was perhaps the first person in Japan to observe ice crystals under a microscope.























