Geological Survey circular

no.908 1983; no.884 1982; no.867 1982; no.871:A 1981; no.854:C 1980; no.854:B 1980; no.854:A 1980; no.853:D 1980; no.853:C 1980; no.853:B 1980; no.853:A 1980; no.848:C 1981; no.843 1981; no.836:D 1979; no.836:C 1979; no.836:B 1979; no.836:A 1979; no.823:B 1979; no.823:A 1980; no.819:D 1978; no.819:C 1978; no.819:B 1978; no.819:A 1978; no.818:C 1979; no.818:B 1979; no.818:A 1979; no.817 1983; no.788:D 1977; no.788:C 1977; no.788:B 1977; no.788:A 1977; no.785:C 1978; no.785:B 1978; no.785:A 1978; no.770 1978; no.766:D 1976; no.766:C 1976; no.766:B 1976; no.766:A 1976; no.764 1978; no.762:C 1977; no.762:B 1977; no.762:A 1977; no.749:D 1975; no.749:C 1975; no.749:B 1975; no.749:A 1975; no.723:D 1974; no.723:C 1974; no.723:A 1974; no.720 1975; no.716 1975; no.713 1974; no.706 1974; no.700 1974; no.696 1973; no.691 1974; no.683 1973; no.682 1973; no.676 1970; no.668 1972; no.660 1970; no.659 1970; no.658 1970; no.657 1970; no.656 1970; no.655 1970; no.654 1970; no.653 1970; no.652 1970; no.651 1970; no.648 1972; no.634 1970; no.618 1969; no.605 1968; no.589 1968; no.568 1968; no.548 1967; no.532 1966; no.528 1966; no.522 1965; no.519 1965; no.518 1965; no.500 1965; no.499 1965; no.473 1962; no.463 1961; no.454 1961; no.421 1960; no.416 1958; no.412 1958; no.404 1957; no.403 1957; no.401 1956; no.398 1955; no.379 1955; no.378 1957; no.377 1955; no.303 pt.2 1949/1950; no.284 1953; no.276 1953; no.269 1952; no.232 1952; no.223 1953; no.221 1952; no.206 1952; no.188 1952; no.183 1952; no.167 1947/1950; no.165 1952; no.151 1951; no.139 1951; no.126 1951; no.115 1951; no.105 1951; no.104 1951; no.103 1951; no.100 1951; no.53 1949; no.52 1949; no.2 1933; no.3 1933; no.4 1933; no.5-14 1934-1946; no.16-18 1947; no.50 1949; no.51 1951; no.52 1949; no.53 1949; no.55 1949; no.56 1949; no.57 1949; no.58 1949; no.59 1949; no.61 1949; no.63 1949; no.64 1949; no.65 1949; no.41-45 1949; no.36 1948; no.68-76 1950; no.102-109 1950-1952; no.110-114 1951; no.115-125 1951; no.128 1951; no.129 1952; no.130 1951; no.135-137 1951; no.140-146 1951; no.150 1952; no.148 1951; no.149 1952; no.152-155 1952; no.163 1953; no.165 1952; no.166 1953; no.167 1952; no.168 1952; no.171-174 1952; no.182 1952; no.183 1952; no.184-187 1952; no.188 1952; no.189 1952; no.190 1952; no.192-196 1952; no.206 1952; no.207-210 1952-1953; no.211 1952; no.212 1952; no.213 1952; no.214 1952; no.215 1953; no.228-231 1952-1954; no.232 1952; no.234-239 1953-1954; no.241 1953; no.242 1953; no.243 1953; no.244-252 1953; no.253-255 1953; no.256 1953; no.257 1953; no.258 1953; no.260 1953; no.262 1953; no.264 1953; no.265 1953; no.266 1953; no.267 1953; no.269-272 1953; no.273-286 1953; no.288-299 1953; no.300-307 1954; no.309-328 1953-1954; no.329-336 1954; no.337 1954; no.338 1954; no.339 1954; no.340-350 1954-1955; no.351-359 1954-1955; no.361-367 1955; no.368 1955; no.369-376 1955-1957; no.377 1956; no.379 1956; no.380 1956; no.389 1956; no.391 1956; no.392 1956; no.394 1956; no.397 1957; no.398 1957; no.400-419 1957-1960; no.420-439 1960-1961; no.440-459 1960-1964; no.460-A 1962; no.460-C 1968; no.460-D 1971; no.460-E 1975; no.461-477 1960-1963; no.478-490 1963-1964; no.491-500 1964-1965; no.501-506 1965; no.507-514 1965; no.528-537 1966-1969; no.538-555 1967-1968; no.556-570 1968; no.571-576 1968; no.577-586 1968; no.587-600 1968-1969; no.601 1969-1975; no.602-620 1968-1970; no.637 A-B 1970; no.651-660 1970; no.661-666 1971; no.667-670 1972-1973; no.672-675 1972-1973; no.676-677 1972-1973; no.677 1973; no.679-683 1973; no.684 1973; no.685-690 1973-1974; no.691A B 1974; no.692-705 1974; no.706-714 1975; no.715 1975-1980; no.716 1975; no.717 1975-1976; no.718-723 1975-1976; no.724-734 1975-1976; no.735-738 1976; no.739-748 1977; no.749-751 1977; no.752-758 1977-1979; no.759-760 1983; no.761-763 1977-1978; no.764 1978; no.765-768 1977-1978; no.769 1978; no.777 1982; no.778-782 1978-1979; no.783 1979; no.784-789 1978-1979; no.790-791 1978-1979; no.792-793 1980-1983; no.794-799 1978-1979; no.800-803 1979-1981; no.804-B 1979; no.805-816 1979-1980; no.817 1983; no.818-C 1980; no.819 1978; no.820-823 1979-1983; no.824-833 1980; no.836 1979; no.62 1949; no.837-843 1980-1981; no.844-847 1981-1982; no.850 1980-1984; no.853 1980; no.854 1980; no.855-857 1981-1982; no.858 1981-1987; no.859-861 1982; no.862-864 1982-1983; no.867-868 1983-1984; no.870 1983; no.871 1982; no.872-874 1982-1983; no.876-881 1982-1988; no.882-890 1982-1989; no.895 1983/1984; no.896 1982; no.897-899 1983-1984; no.901-905 1983-1985; no.906-913 1983-1984; no.1102 1993; no.1103-B 1994; no.217-227 1952-1953; no.259 1954; no.263 1953; no.901-904; no.896-900; no.885-889; no.879-884; no.855-859; no.406-411; no.155-159; no.280-281,283-284,286-288 1953; no.56 1949; no.285 reprint 1959; no.289 1953; no.290-291,294-299 1953; no.293 1953; no.414-D 1960; no.601-J 1974; no.601-I 1973; no.601-H 1973; no.601-G 1971; no.628 1970; no.680 1973; no.691A-B 1974; no.701 1974; no.703 1974; no.704 1974; no.705 1974; no.706 1975; no.707 1975; no.708 1974; no.709 1975; no.710 1974; no.711 1975; no.712 1975; no.713 1974; no.714 1975; no.715-M 1976; no.715-L 1979; no.715-K 1980; no.715-J 1979; no.715-I 1977; no.715-H 1976; no.715-G 1977; no.715-F 1977; no.715-E 1976; no.715-D 1976; no.715-C 1976; no.715-B 1975; no.715-A 1975; no.717-D 1976; no.717-C 1976; no.717-B 1975; no.717-A 1975; no.723-D 1976; no.723-C 1976; no.723-B 1976; no.723-A 1976; no.736-D 1977; no.736-C 1977; no.736-B 1976; no.736-A 1976; no.749-D 1977; no.749-C 1977; no.749-B 1977; no.749-A 1977; no.751-A 1977; no.755-B 1978; no.755-A 1978; no.762-C 1978; no.762-B 1977; no.762-A 1977; no.766-D 1978; no.766-C 1978; no.766-B 1978; no.766-A 1978; no.776-C 1976; no.776-B 1978; no.776-A 1976; no.785-C 1979; no.785-B 1979; no.785-A 1978; no.788-D 1979; no.788-C 1979; no.788-A 1979; no.790 text 1978; no.799 A-B; no.804-B 1979; no.818-C 1980; no.818-B 1980; no.818-A 1979; no.819-D 1980; no.819-C 1980; no.819-B 1980; no.819-A 1980; no.836-D 1981; no.836-C 1980; no.836-B 1980; no.847 1982; no.848-E 1981; no.848-C 1981; no.848-B 1981; no.848-A 1982; no.850-L 1984; no.850-K 1983; no.858-B 1981; no.858-A 1981; no.871-D 1982; no.871-C 1982; no.871-B 1982; no.871-A 1982; no.896-D 1984; no.896-B 1983; no.896-A 1983; no.902 A-P 1983; no.904-A 1984; no.66-69 1949-1950; no.236-246; no.800-804; no.821-824; no.850A-J; no.22-24 1948-1949; no.27 1949; no.29-32 1948-1949; no.38 1950; no.77-85 1950-1951; no.86-96 1950-1951; no.131-133 1951; no.157-161 1952; no.175-180 1952; no.198-202 1952-1953; no.515-527 1965-1966; no.621-632 1968-1970; no.633-650 1970-1972; no.649 1972; v.853B; v.853-C; v.854A; v.853-D; v.853A; v.34; v.37-38; v.29-32; v.819-A; v.819-B; v.819-C; v.819-D; v.820; v.822; v.823-B; v.824; v.825; v.826; v.827; v.828; v.834; v.836-A; v.836-B; v.836-C; v.836-D; v.837; v.839; v.840; v.841; v.843; v.844; v.848-E; v.849; v.850-A; v.850-B; v.850-C; v.850-D; v.850-G; v.850-I; v.851; v.842; v.850F; v.850E; v.1268; v.850-H; v.648; v.679; v.601:A-K; v.696-710; v.829; v.830; v.832; v.833; v.845; v.846; v.847; v.848-A; v.848-B; v.848-C; v.848-D; v.930-M; no.558-568; no.569-570; no.571-576; no.602-613; no.646-649; no.677; no.677; no.679-681; no.683; no.684; no.690; no.692-699; no.737-738 (1976); no.749:A-D; no.758-760; no.767-768; no.778-779; no.788; no.792-793; no.804-B; no.818:A-C; no.819:A-D; no.820-822; no.823:A-B; no.836A-D; no.847-849; no.850A-L; no.853A-D; no.874; no.671; no.399; no.414; no.641; no.878-c; no.20; no.40; no.46; no.70-71; no.98; no.116; no.145;INDEX; no.148; no.149; no.163; no.166; no.168; no.190; no.262; no.264; no.267; no.294; no.298; no.330; no.391; no.403; no.404; no.407; no.455; no.473; no.426-449; no.482-490; no.491-501