W. Riemer 1952 Journal 23 Feb. Calif.: Santa Clara Co., Stanford University Photographic set-up as follows: [Diagram showing photographic setup with labels: table top, adjustable microscope stage for ease in focusing, mirror, condenser lens, carbon arc light source, lava (on side), wax bed, glass] Twitty recommends for anesthesia 0.025 part solution of "M.S. 222". Kept as stock solution at strength of 0.05 parts. Made and diluted with tap water. "MS 222" purchased in 100 gm lots from Sandoz Chemical Works, Inc., 61 Van Dam St., New York City. Larvae immersed but adults must be injected. Adults work as well with ether-water mixture. Saw animals Twitty calls granulose collected near Stanford, light in color like lighter colored of torosus from Berkeley. Not distinguishable from torosus from same collection site to my eyes. Torosus from Mt. Hamilton appear different from Berkeley ones, more reddish. Twitty thinks & vent shape best granulose character. * See Journal of 14 March 1952.