THE MODERN AND LATE QUATERNARY VEGETATION OF THE CAMPBELL-DOLOMITE UPLANDS, NEAR INUVIK, N.W.T. CANADA.RITCHIE JC.1977; ECOL. MONOGR.; USA; DA. 1977; VOL. 47; NO 4; PP. 401-423; H.T. 1; BIBL. 1 P. 1/2Article

QUATERNARY STRATIGRAPHY, MACKENZIE DELTA-ARCTIC COAST, DISTRICT OF MACKENZIE (107D).RITCHIE JC.1969; GEOL. SURV. CANADA, PAPER; CAN; 1969, NUM. 00AMiscellaneous

ABSOLUTE POLLEN FREQUENCIES AND CARBON-14 AGE OF A SECTION OF HOLOCENE LAKE SEDIMENT FROM THE RIDING MOUNTAIN AREA OF MANITOBA.RITCHIE JC.1969; CANAD. J. BOT.; CAN; 1969(9), VOL. 47, NUM. 0009, P. 1345 A 1349Miscellaneous

PREDICTING CROP YIELDS VIA SATELLITERITCHIE JC.1980; USDA, AGRIC. RES.; USA; DA. 1980; VOL. 29; NO 5; PP. 6-11Article

THE LATE-QUATERNARY VEGETATIONAL HISTORY OF THE WESTERN INTERIOR OF CANADA.RITCHIE JC.1976; CANAD. J. BOT.; CANADA; DA. 1976; VOL. 54; NO 15; PP. 1793-1818; ABS. FR.; BIBL. 2 P.Article

MODERN DIATOM ASSEMBLAGES FROM LAKE SEDIMENTS IN THE BOREAL-ARCTIC TRANSITION REGION NEAR THE MACKENZIE DELTA, N.W.T., CANADA.KOIVO LK; RITCHIE JC.1978; CANAD. J. BOT.; CANADA; DA. 1978; VOL. 56; NO 8; PP. 1010-1020; ABS. FR.; BIBL. 1 P.Article

POLLEN STRATIGRAPHY OF MACKENZIE PINGO SEDIMENTS, N.W.T., CANADA.HYVARINEN H; RITCHIE JC.1975; ARCTIC ALP. RES.; U.S.A.; 1975, VOL. 7, NUM. 0003, P. 261 A 272Serial Issue

ARCTIC STEPPE-TUNDRA: A YUKON PERSPECTIVE = STEPPE-TOUNDRA ARCTIQUE: APERCU SUR LE YUKONCWYNAR LC; RITCHIE JC.1980; SCIENCE; ISSN 0036-8075; USA; DA. 1980; VOL. 208; NO 4450; PP. 1375-1377; BIBL. 15 REF.; ESQUISSE/ILL.Article

FALLOUT CESIUM-137 IN CULTIVATED AND NONCULTIVATED NORTH CENTRAL UNITED STATES WATERSHEDS.RITCHIE JC; MCHENRY JC.1978; J. ENVIRONMENT. QUAL.; U.S.A.; DA. 1978; VOL. 7; NO 1; PP. 40-44; BIBL. 27 REF.Article

THE LATE-QUATERNARY HISTORY OF THE BOREAL FOREST OF CENTRAL CANADA, BASED ON STANDARD POLLEN STRATIGRAPHY AND PRINCIPAL COMPONENTS ANALYSIS.RITCHIE JC; YARRANTON GA.1978; J. ECOL.; G.B.; DA. 1978; VOL. 66; NO 1; PP. 199-212; BIBL. 25 REF.Article

THE DISTRIBUTION OF CS-137 IN SOME WATERSHEDS IN THE EASTERN UNITED STATES.RITCHIE JC; MCHENRY JR.1977; HEALTH PHYS.; G.B.; DA. 1977; VOL. 32; NO 2; PP. 101-105; BIBL. 27 REF.Article

POLLEN STRATIGRAPHY OF MACKENZIE PINGO SEDIMENTS, N.W.T., CANADA.HYVAERINEN H; RITCHIE JC.1975; ARCTIC ALP. RES.; U.S.A.; 1975, VOL. 7, NUM. 0003, P. 261 A 272Serial Issue

POLLEN STRATIGRAPHY OF HOLOGENE SEDIMENTS FROM THE GRAND RAPIDS AREA, MANITOBA, CANADA.RITCHIE JC; HADDEN KA.1975; REV. PALAEOBOT. PALYNOL.; NETHERL.; 1975, VOL. 19, NUM. 0003, P. 193 A 202Serial Issue

SEQUENTIAL CORRELATIONS AS AN AID IN PLACING POLLEN ZONE BOUNDARIESYARRANTON GA; RITCHIE JC.1972; POLLEN ET SPORES; FR. ; 1972, VOL. 14, NUM. 0002, P. 213 A 223Serial Issue

REDISTRIBUTION OF FALL-OUT CAESIUM-137 IN SMALL WATERSHEDS OF THE UNITED STATES OF AMERICA = LA REDISTRIBUTION DU CESIUM 137 PROVENANT DE RETOMBEES RADIOACTIVES DANS DE PETITS BASSINS VERSANTS DES ETATS-UNIS D'AMERIQUERITCHIE JC; MCHENRY JG.1982; INTERNATIONAL SYMPOSIUM ON MIGRATION IN THE TERRESTRIAL ENVIRONMENT OF LONG-LIVED RADIONUCLIDES FROM THE NUCLEAR FUEL CYCLE/1981/KNOXVILLE; AUT; VIENNA: INTERNATIONAL ATOM. ENERGY AGENCY; DA. 1982; PP. 809-810; BIBL. 4 REF.Conference Paper

RECENT ACCUMULATION OF SEDIMENT IN LAKES IN THE BEAR CREEK WATERSHED IN THE MISSISSIPPI DELTARITCHIE JC; MCHENRY JR.1979; SOUTHEAST GEOL.; USA; DA. 1979; VOL. 20; NO 3; PP. 173-180; BIBL. 7 REF.; 6 ILL.Article

FALLOUT CS-137: A TOOL IN CONSERVATION RESEARCH.RITCHIE JC; MCHENRY JR.1975; J. SOIL WAT. CONSERV.; U.S.A.; 1975, VOL. 30, NUM. 0006, P. 283 A 286Serial Issue

POSTGLACIAL DIATOM STRATIGRAPHY IN RELATION TO THE RECESSION OF GLACIAL LAKE AGASSIZ.RITCHIE JC; KOIVO LK.1975; QUATERN. RES.; U.S.A.; 1975, VOL. 5, NUM. 0004, P. 529 A 540Serial Issue

POLLEN DISPERSAL PHENOMENA IN ARCTIC-SUBARCTIC CANADA.RITCHIE JC; LICHTI FEDEROVICH S.1967; REV. PALAEOBOT. PALYNOL.; NLD; 1967(8), VOL. 3, P. 255 A 266Miscellaneous

RECENT POLLEN ASSEMBLAGES FROM THE WESTERN INTERIOR OF CANADA.LICHTI FEDEROVICH S; RITCHIE JC.1968; REV. PALAEOBOT. PALYNOL.; NLD; 1968(12), VOL. 7, NUM. 0004, P. 297 A 345Miscellaneous

SUSPENDED SEDIMENT, SOLAR RADIATION AND HEAT IN AGRICULTURAL RESERVOIRS.SCHIEBE FR; RITCHIE JC; MCHENRY JR et al.1977; IN: PROC. 3RD FED. INTER-AGENCY SEDIMENT. CONF.; DENVER; 1976; WASHINGTON; SEDIMENT. COMM. WATER RESOUR. COUNC.; DA. 1977; PP. 3.1-3.12; BIBL. 4 REF.; 7 ILL.Conference Paper

THORIUM, URANIUM, AND POTASSIUM IN UPPER CRETACEOUS PALEOCENE AND EOCENE SEDIMENTS OF THE LITTLE TALLAHATCHIE RIVER WATERSHED IN NORTHERN MISSISSIPPIRITCHIE JC; HAWKS PH; MCHENRY JR et al.1972; SOUTHEAST GEOL.; U.S.A. ; 1972, VOL. 14, NUM. 0004, P. 221 A 232Serial Issue

REMOTE SENSING OF SUSPENDED SEDIMENTS IN SURFACE WATERS.RITCHIE JC; SCHIEBE FR; MCHENRY JR et al.1976; PHOTOGRAMM. ENGNG REMOTE SENSG; U.S.A.; DA. 1976; VOL. 42; NO 12; PP. 1539-1545; BIBL. 17 REF.; 7 ILL.Article

FALLOUT ¹³⁷CS IN THE SOILS AND SEDIMENTS OF THREE SMALL WATERSHEDS = RETOMBEES DE ¹³⁷CS DANS LES SOLS ET LES SEDIMENTS DE TROIS PETITS BASSINS VERSANTSRITCHIE JC; MCHENRY JR; GIL AC et al.1974; ECOLOGY; U.S.A.; DA. 1974; VOL. 55; NO 4; PP. 887-890; BIBL. 14 REF.Article

CONNECTIVE TISSUE ACTIVATION. XI. STIMULATION OF GLYCOSAMINOGLYCAN AND DNA FORMATION BY A PLATELET FACTORCASTOR CW; RITCHIE JC; SCOTT ME et al.1977; ARTHRIT. AND RHEUMATISM; USA; DA. 1977; VOL. 20; NO 3; PP. 859-868; BIBL. 29 REF.Article