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[American] Bladder Nut (Staphylidae trifolia), 1923
Pressed leaf and flower from the 1923 biology notebook of Rosella Sprague Ames (class of 1926).
Cell from Proterallium, 1926
The camera lucida is an optical device patented in 1806 as a drawing aid by artists and scientists. Through a combination of a prism and half-silvered mirror, the artist sees the subject being viewed superimposed on the ...