Illustrations of various strains of pollen in extreme magnification, as featured in Ueber den Pollen (1837), a book by St. Petersburg based German pharmacist and chemist Carl Julius Fritzsche.
![v.2 (1757) [Atlas] - Vergnügen der Augen und des Gemüths - Biodiversity Heritage Library](https://i.pinimg.com/originals/b8/a6/34/b8a6340ee4e6461dc8583597994fd756.jpg)
