From Plant Press Vol. 16 no. 4, October 2013
Helina Chin, an intern from the California State University at Monterey Bay, worked with Alice Tangerini and spent the summer scanning drawings from the herbarium and from Tangerini’s office. Chin’s internship was part of her final graduate semester as part of the Science Illustration Program. Chin came with a strong background in using Adobe Photoshop and in devising ways to manipulate scans to best advantage the artwork. Her first job was to scan 250 dinoflagellate drawings from negatives and photographic prints from the Botany Dinoflagellate Type Collection. Working closely with Maria Faust and Elaine Haug, Chin devised a system for scanning the negatives to optimize time and still bring out the subtle shades and patterns found in the dinoflagellates.Explorations and Surveys of a Railroad Route from the Mississippi River to the Pacific Ocean.” The exquisite graphite illustrations by Paulus Roetter, a St. Louis native and the artist of the expedition, were of cactus species (many of which were types) and had been filed in with cactus specimens in the herbarium. Many of the drawings suffered from abrasion, causing the graphite lines to be so pale as to be almost invisible when scanned. Chin worked with these difficult objects and brought them back to a previous unblemished life.