P. Brylski 1982 Journal 1.6 mi N. Chilcoot, Plumas Co., Calif. 20 may The microdips have apparently just begun to enter breeding condition. No signs of estrus were observed but several ♀♀ had enlarged moderately to very swollen uteri — apparently in preparation for implantation. The ♂♂ were not scrotal however, though the seminal vesicles were fairly large (~ 16 mm). The situation was similar with the Perognathus, perhaps ♀♀ showing even less reproductive readiness though ♂ parvus were mostly semi-scrotal with full seminal vesicles. A single ♀ D. ordii was in peak estrus. Several maniculata ♀♀ were obviously pregnant. Repro tracts from parvus and megaphorus were saved; formalin-fixed animals were prepared first of vascular perfusion (VP on tags / notes). Six maniculata were kept live for breeding experiments — one was in v. late term pregnant. She can barely move. two ♂ ordii were saved live for breeding also. I'm a bit surprised to see the kangaroo and pocket mice w/o embryos. The Artemisia are well into their new growth. growth. Forbs are common now — many in bloom. The greens have set seed. Perhaps this is a result of the late spring (it snowed 6" up here 3 weeks ago), though it may also be the normal state of affairs. 22 may 10 mi E, 0.2 mi S Mono City (Jct 395 & 167), Mono Co., Calif. Elev. 6475 ft 9 pm Arrived here yesterday afternoon, driving down from Chilcoot via Hwy 395. John Harris of U.C. Davis told me