Field observations and laboratory studies of some Antarctic cold desert cryptogams

Spectral Properties of Plants

1965 • 1,369 citations

Phytosociology and Ecology of Cryptogamic Epiphytes.

1971 • 815 citations

Physiology of fungi

1958 • 477 citations

The Culture Collection of Algae at Indiana University

1964 • 189 citations

The production of extracellular nitrogenous substances by a blue-green alga

1952 • 170 citations

A comparative study of the role of lichens and "inorganic" processes in the chemical weathering of Recent Hawaiian lava flows

1970 • 163 citations

Surface of the Ocean as a Source of Air-Borne Nitrogenous Material and other Plant Nutrients

1959 • 133 citations

Fungal Attack on Rock: Solubilization and Altered Infrared Spectra

1970 • 110 citations

Arctic and Alpine Environments

1968 • 99 citations

Availability of Biologically Fixed Atmospheric Nitrogen-15 to Higher Plants

1966 • 95 citations

Origin of Nitrate Deposits

1968 • 94 citations

Transfer of Biologically Fixed Nitrogen in a Sand Dune Slack Region

1967 • 81 citations

THE BREEDING BEHAVIOUR OF THE SOUTH POLAR SKUA CATHARACTA MACCORMICKI

1963 • 73 citations

Liberation of Extracellular Nitrogen by Two Nitrogen-fixing Blue-green Algae

1963 • 69 citations

Ammonium Micas: Possible Sources of Atmospheric Ammonia and Nitrogen

1966 • 67 citations

Freshwater Algae in the Antarctic Regions

1965 • 67 citations

Isolation and Culture of Terrestrial and Fresh-water Algae of Antarctica

1964 • 61 citations

Soils of Taylor Dry Valley, Victoria Land, Antarctica, with notes on soils from other localities in Victoria Land

1967 • 59 citations

Terrestrial Life of Antarctica

1968 • 59 citations

Distribution and Life History Studies of the South-Polar Skua

1961 • 57 citations

Plant and invertebrate ecology

1967 • 57 citations

General Biology And Nomenclature Of Psychrophilic Micro-Organisms

1963 • 57 citations

On the Presence of Fixed Ammonium in Rocks

1959 • 55 citations

Antarctic Soils and Soil Forming Processes

1967 • 54 citations

Observations in guanotrophic environments

1967 • 53 citations

The Terrestrial Life of the Antarctic

1962 • 49 citations

OBSERVATIONS ON THE PHYSIOLOGY OF PSYCHROPHILISM IN A YEAST

1962 • 49 citations

The uptake of amino acids by carrot slices

1956 • 48 citations

TEMPERATURE EFFECTS ON THE GROWTH OF AN OBLIGATE PSYCHROPHILIC MARINE BACTERIUM 12

1964 • 48 citations

Vegetation on Hallett Station Area, Victoria Land, Antarctica

1963 • 47 citations

Uric Acid Dihydrate in Bird Urine

1971 • 46 citations

The Absorption of Solutes by Plant Cells

1964 • 45 citations

Alga- and Lichen-Stabilized Surface Crusts as Soil Nitrogen Sources

1957 • 44 citations

Geological Investigations in Southern Victoria Land, Antarctica

1962 • 43 citations

Studies on Lichenized Fungi

1961 • 43 citations

Algae in green ice from the Balleny Islands, Antarctica

1968 • 40 citations

Chemical composition of south polar snow

1965 • 40 citations

Algae: Nitrogen Fixation by Antarctic Species

1963 • 38 citations

Algal and Lichen Floras in Relation to Nitrogen Content of Certain Volcanic and Arid Range Soils

1957 • 35 citations

The Second Byrd Antarctic Expedition-Botany. I. Ecology and Geographical Distribution

1938 • 35 citations

Studies in the Physiology of Lichens: With one Figure in the Text

1960 • 33 citations

Spherical Urine in Birds: Petrography

1969 • 31 citations

ENTOMOLOGICAL INVESTIGATIONS IN ANTARCTICA, 1962-63 SEASON1

1964 • 31 citations

Organic Nutrition of Some Mosses Growing in Pure Culture

1959 • 30 citations

Ecological Study of the Moss Community and Microorganisms in the Vicinity of Syowa Station, Antarctica

1968 • 30 citations

Effect of Gibberellic Acid on the Growth of Protonemata in Splachnum ampullaceum (L.) Hedw.

1958 • 29 citations

Further Studies on Lichenized Fungi

1964 • 28 citations

Genetic Histories of Nitrate Deposits from Antarctica and Chile

1968 • 28 citations

PRESENCE OF AZOTOBACTER SPECIES IN POLAR REGIONS

1962 • 25 citations

The Assimilation by Plants of Various Forms of Nitrogen

1937 • 24 citations

CONCENTRATION AND TRANSPORT OF TRUE URATE IN THE PLASMA OF THE AZOTEMIC CHICKEN

1947 • 24 citations

Glaciological and Geomorphological Reconnaissance in the Antarctic in 1956

1957 • 23 citations

Ornithology of the Second Byrd Antarctic Expedition

1937 • 21 citations

Effects of environmental extremes on Lichens

1968 • 21 citations

An Iodimetric Estimation of Uric Acid in Poultry Excreta

1944 • 18 citations

Nitrate and lodate in Antarctic Salt Deposits

1962 • 17 citations

The Second Byrd Antarctic Expedition: Botany. III. Mosses

1938 • 14 citations

Mosses from the United States Antarctic Service Expedition, 1940-41

1957 • 13 citations

Vitamin Requirements of Three Lichen Fungi

1958 • 12 citations

Dictionary of Microbiology

1957 • 11 citations

Some Techniques in the Culture of Mosses

1960 • 11 citations

Lichens

1965 • 9 citations

Impuretés solubles contenues dans la glace de l'Antarctique

1969 • 7 citations

Balleny Islands reconnaissance expedition, 1964

1965 • 6 citations

Kinetics of accumulation of uric acid and xanthine by the yeast, Candida utilis

1964 • 4 citations

Second (1948) U.S. Navy Antarctic Development Project

1948 • 2 citations

On the Occurrence of the Fresh-water Alga (Prasiola crispa) on Contact Beds and its Resemblances to the Green Seaweed (Ulva latissima), by E. A. LETTS, D.Sc., etc. (FELLOW)

1913 • 1 citations