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Ice, Liquid and Vapor acrylic and pigment transfer on canvas 10 x 10 inches 01-05-03 hbt03-001 Private Collection |
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American Groundwater Trust acrylic, pigment transfer on canvas 10 x 10 inches 01-21-03 hbt03-004 Private Collection |
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Every Winter Day Takes a Little Warmth Out of Us acrylic, graphite on canvas 10 x 10 inches 01-27-03 hbt03-006 Private Collection |
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Satellite Data and Computers Analyze Weather acrylic, pigment transfer on canvas 10 x 10 inches 02-16-03 hbt03-013 Private Collection |
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It's Still Summer acrylic, pigment transfer on canvas 10 x 10 inches 03-04-03 hbt03-018 |
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Shielding the King from Public Gaze acrylic, pigment transfer on canvas 10 x 10 inches 03-20-03 hbt03-020 Current location: if ART Gallery, Columbia, SC |
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Clean Water Act acrylic, pigment transfer on canvas 10 x 10 inches 03-05-03 hbt03-021 Private Collection |
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The Level Has Since Fallen 42 Feet acrylic, pigment transfer on canvas 10 x 10 inches 03-18-03 hbt03-025 Private Collection |
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Breathing Trouble acrylic, pigment transfer on canvas 10 x 10 inches 03-20-03 hbt03-026 Private Collection |
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I Wanted To Send an Angel acrylic, pigment transfer on canvas 10 x 10 inches 03-20-03 hbt03-027 Private Collection |
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Sky Piloting acrylic, pigment transfer on canvas 10 x 10 inches 03-20-03 hbt03-029 Private Collection |
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To Save Endangered Species acrylic, pigment transfer on canvas 10 x 10 inches 03-20-03 hbt03-030 |
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Water Projects acrylic, pigment transfer on canvas 10 x 10 inches 03-20-03 hbt03-031 Private Collection |
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The Wings of Man acrylic, pigment transfer on canvas 10 x 10 inches 03-20-03 hbt03-032 |
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Earth Diameter 7,926 Miles acrylic, pigment transfer on canvas 10 x 10 inches 03-25-03 hbt03-033 |
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Butterflies,Dragonflies and Bees Appear acrylic, pigment transfer on canvas 10 x 10 inches 04-01-03 hbt03-034 Private Collection |
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Church Shadow acrylic, pigment transfer on canvas 10 x 10 inches 04-01-03 hbt03-035 Private Collection |
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Finite Products of the Earth acrylic, pigment transfer on canvas 10 x 10 inches 04-01-03 hbt03-036 Private Collection |
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Suntan Lotion Smell acrylic, pigment transfer on canvas 10 x 10 inches 04-01-03 hbt03-038 Private Collection |
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Chilkats Dancing acrylic and pigment transfer on wood panel 10 x 10 inches 06-20-03 hbt03-052 Private Collection |
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The Earth Sciences Rely on the Collection of Observed Data in the Field acrylic, color pencil, pigment transfer on canvas 10 x 10 inches 09-03-03 hbt03-063 Private Collection |
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Plants Obtain Mineral Nutrients Through Their Roots acrylic on canvas 10 x 10 inches 09-04-03 hbt03-065 Private Collection |
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Moss Can Live High in the Branches Gathering Light that is Scarce on the Forest Floor acrylic on canvas 10 x 10 inches 09-04-03 hbt03-066 Private Collection |
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Every Kind of Plant That Bears Seed I acrylic, graphite, color pencil on canvas 67 x 93 inches 09-05-03 hbt03-06 Private Collection |
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Flowering Plants are the Main Producers of Food for Animals acrylic, pigment transfer on canvas 10 x 10 inches 09-05-03 hbt03-067 Private Collection |
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In Winter the Southern Shift of Wind Belts Brings Cyclonic Rain to the Mediterranean acrylic on canvas 10 x 10 inches 09-07-03 hbt03-069 Private Collection |
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Seed Dispersal Reduces Resource Competition Between Parent Plants and the Seedlings acrylic on canvas 10 x 10 inches 09-10-03 hbt03-070 Private Collection |
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Seed Dispersal Enables a Species to Expand its Territory acrylic on canvas 10 x 10 inches 09-12-03 hbt03-073 Private Collection |
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The Effects of a Prevailing Wind is Exemplified by a Uniquely Contoured Tree Growing Away from the Direction of the Wind acrylic on canvas 10 x 10 inches 09-12-03 hbt03-074 Private Collection |
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Complicated Phenomena Such as Atmospheric and Oceanic Circulations are Being Predicted with Increasing Accuracy by Computers acrylic, color pencil on canvas 10 x 10 inches 09-15-03 hbt03-075 Private Collection |
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Every Kind of Plant That Bears Seed II acrylic, graphite on canvas 67 x 93 inches 09-20-03 hbt03-07 Private Collection |
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A Continent is Older at the Center than at the Edges acrylic on canvas 10 x 10 inches 09-20-03 hbt03-076 Private Collection |
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The Petals Serve to Attract Pollinating Insects and Birds acrylic on canvas 10 x 10 inches 09-28-03 hbt03-081 Private Collection |
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Tulipa & Narcissus acrylic on canvas 10 x 10 inches 09-28-03 hbt03-082 Private Collection |
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Man Produces the Most Significant Landscape Modifications acrylic, color pencil, graphite on canvas 10 x 10 inches 09-30-03 hbt03-084 Private Collection |
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We Know of About 250,000 Species of Plants that Produce Seeds acrylic, color pencil on canvas 10 x 10 inches 09-30-03 hbt03-087 Private Collection |
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Temperature, Light, Wetness or Dryness acrylic on canvas 10 x 10 inches 10-07-03 hbt03-088 Private Collection |
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A Pattern of Separating Continents Dominated by Flowering Plants and Mammals acrylic, color pencil, graphite on canvas 10 x 10 inches 10-08-03 hbt03-089 Private Collection |
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Behaviors Function Efficiently Under Limited Environmental Conditions acrylic, color pencil on canvas 10 x 10 inches 10-10-03 hbt03-090 Private Collection |
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Angiosperms Spread Through the World at a Time when the Continents Had Not Yet Split Apart acrylic on canvas 10 x 10 inches 10-20-03 hbt03-091 Private Collection |
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Every Kind of Plant That Bears Seed III acrylic, graphite on canvas 67 x 93 inches 10-22-03 hbt03-08 Private Collection |
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Species Compete for Limited Space and Food Resources acrylic, color pencil, graphite on canvas 10 x 10 inches 10-22-03 hbt03-092 Private Collection |
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Only the Animals Have Succeeded in Actively Invading the Atmosphere acrylic, pigment transfer on canvas 10 x 10 inches 10-25-03 hbt03-093 Private Collection |
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Gondwanaland is Thought to Have Broken Up During the Cretaceous Period acrylic on canvas 10 x 10 inches 11-07-03 hbt03-095 Private Collection |
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The Pressure of Competition of Food Resources acrylic, pigment transfer on canvas 10 x 10 inches 11-07-03 hbt03-096 Private Collection |
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The Rise of the Flowering Plants Took Place in the Early Cretaceous Period acrylic on canvas 10 x 10 inches 11-11-03 hbt03-097 Private Collection |
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Other Species are Found Almost Everywhere acrylic, pigment transfer on canvas 10 x 10 inches 11-12-03 hbt03-098 Private Collection |
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Physical Conditions of an Organism's Environment acrylic, pigment transfer on canvas 10 x 10 inches 11-17-03 hbt03-100 Private Collection |
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Biologists Have Recognized 300,000 Species of Green Plants and Fungi acrylic, pigment transfer on canvas 10 x 10 inches 11-25-03 hbt03-102 Private Collection |
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Nectar Is Essentially an Aqueous Solution of Sugars acrylic, pigment transfer on canvas 10 x 10 inches 12-01-03 hbt03-103 Private Collection |
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Pollinators Carry Pollen from One Flower to Another acrylic, pigment transfer on canvas 10 x 10 inches 12-02-03 hbt03-104 Private Collection |
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Mammals Have a Four-Chambered Heart with Complete Double Circulation acrylic, pigment transfer on canvas 10 x 10 inches 12-06-03 hbt03-112 Private Collection |
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Petals and Corolla-Lobes Often Bear Guide Marks acrylic, pigment transfer on canvas 10 x 10 inches 12-07-03 hbt03-113 Private Collection |
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A Pattern of Separating Continents Dominated by Flowering Plants and Mammals acrylic, pigment transfer on canvas 10 x 10 inches 12-08-03 hbt03-114 Private Collection |
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All Mammals, Birds, Amphibians, Reptiles, and Fish Belong to the Phylum Chordata acrylic, pigment transfer on canvas 10 x 10 inches 12-10-03 hbt03-115 Private Collection |
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Animals Are the Most Diverse in Form of All the Kingdoms acrylic, pigment transfer on canvas 10 x 10 inches 12-10-03 hbt03-116 Private Collection |
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Biota - The Living Surface of Plant Earth acrylic, pigment transfer on canvas 10 x 10 inches 12-10-03 hbt03-118 Private Collection |
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The Earliest Mammals Appeared in the Triassic, Long Before the Earliest Angiosperms acrylic, pigment transfer on canvas 10 x 10 inches 12-10-03 hbt03-120 Private Collection |
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The Presence of Gill Slits Reveal the Marine Ancestry of the Chordates acrylic, pigment transfer on canvas 10 x 10 inches 12-10-03 hbt03-121 Private Collection |
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In Some Plants the Petals or the Guide Marks Change Color When the Flower Has Been Pollinated and the Ovules begin to Develop acrylic on canvas 10 x 10 inches 12-11-03 hbt03-122 Private Collection |