Extension bulletin.

no.1-27 1916-23; no.30-90 1923-32; no.91-134 1929-33; no.135-153 1934-35; no.154-189 1936-37; no.190-234 1938-41; no.235-265 1942-44; no.266-301 1945-49; no.312 rev.7, no.360, 365; no.341-359 1957-58; no.312 rev. 1976; no.364; no.381-493 Incompl.; no.431 rev.1976; no.434 rev.1976; no.497 rev.1976; no.501; no.526, 571; no.550 rev. 1976; no.154 rev.1977; no.431 rev.1977; no.533 rev. 1977; no.434 rev.1977-1978; no.154 rev.1978; no.312 rev. 1978; no.431 rev.1978; no.434 rev.1978; no.458 rev.1978; no.528 rev. 1978; no.637; no.683 rev. 1978; no.434 rev.1979; no.684; no.769 rev. 1979; no.831 rev. 1979; no.944; no.1198 1979; no.1334 1979; no.1352 1980; no.1384 1980; no.1403 1980; no.1413 1980; no.1426 1980; no.1436 1980; no.1437 1980