Botanical microtechnique
A laboratory handbook on microscope technique for plant anatomy, written by Albrecht Zimmermann and translated by James Ellis Humphrey, published in New York by Henry Holt in 1893 for botany students and researchers. Line engravings show cell division spindles with radiating asters, nuclear networks, and labelled leucoplasts and starch grains, offering fine stippled and hatched diagram forms with lettered keys.
