LIKE PEAS IN A POD: This photographic plate from Raphael Weldon’s 1902 article displays the spectrum of pea color variation as a critique of Gregor Mendel’s binary categorization of yellow and green. Images 1–6 display the color range of pea seeds of the variety Telephone as sorted by Weldon after removing their seed coats. Images 7–12 display a color scale from the pea variety Stratagem with coats removed. Images 13–18 show color variations in the two cotyledons of the same pea (Telephone variety). Images 19–24 display peas in their seed coats, which mask any color differences between cotyledons (19–20 are of the Telephone variety; 21, Telegraph; 22, Stratagem; 23, Pride of the Market; and 24, Early Morn).