I am scanning a lot of Things of Science lately. As a way to keep a handy, sorted reference to the scanned booklets, I created this post. I will update it as I add new units.

1953

• Things of Science #147 (Jan) — Multi-Layer Wood Unit (coming)
• Things of Science #149 (Mar) — Fibers of the Pacific Unit (coming)
• Things of Science #150 (Apr) — Nails Unit (coming)
• Things of Science #151 (May) — Licorice Unit (coming)
• Things of Science #152 (Jun) — Iron Oxide Pigments Unit (coming)
• Things of Science #153 (Jul) — Synthetic Fiber Ropes Unit (coming)
• Things of Science #154 (Aug) — Polarized Light Unit (coming)
• Things of Science #155 (Sep) — Sugar Cane Bagasse Unit (coming)
• Things of Science #156 (Oct) — Tea Unit (coming)
• Things of Science #158 (Dec) — Modern Fabrics (coming)

1957

• Things of Science #195 (Jan) — Mollusk Unit
• Things of Science #201 — Papermaking (coming)
• Things of Science #205 — Pharmacy Unit (coming)

1958

• Things of Science #210 — Soil Unit (coming)
• Things of Science #211 — Tin Unit (coming)
• Things of Science #212 — Cotton Laundering (coming)
• Things of Science #216 (Oct) — Spectral Color
• Things of Science #218 (Dec) — Motor

1959

• Things of Science #222 (Apr) — Atomic Energy
• Things of Science #227 (Sep) — Static Electricity
• Things of Science #228 (Oct) — Non-Woven Fabrics (coming)
• Things of Science #230 (Dec) — Butterflies

1960

• Things of Science #232 (Feb) — Herb Seeds
• Things of Science #234 (Apr)— Sextant
• Things of Science #235 (May) — Straight Line
• Things of Science #236 (Jun) — Hexaflexagon
• Things of Science #239 (Sep) — Kaleidoscope
• Things of Science #240 (Oct) — Chemical Models
• Things of Science #241 (Nov) — Magnetic Force

1961

• Things of Science #246 (Apr) — Ancient Gems
• Things of Science #249 (Jul) — Synthetic Rubber
• Things of Science #250 (Aug) — Survival Food
• Things of Science #253 (Nov) — Natural Rubber
• Things of Science #254 (Dec) — Incense

1962

• Things of Science #255 (Jan) — Sea Shell
• Things of Science #256 (Feb) — Seeds
• Things of Science #257 (Mar) — Geometric Models
• Things of Science #260 (Jun) — Surface Tension
• Things of Science #261 (Jul) — Marble
• Things of Science #262 (Aug) — Probability
• Things of Science #263 (Sep) — Silicones
• Things of Science #264 (Oct) — Silk
• Things of Science #265 (Nov) — Taste
• Things of Science #266 (Dec) — Space-Age Minerals

1963

• Things of Science #269 (Mar) — Enzymes
• Things of Science #270 (Apr) — Cotton
• Things of Science #271 (May) — Metal Fasteners
• Things of Science #272 — Diffraction Optics (coming)
• Things of Science #273 — Computation Unit (coming)
• Things of Science #274 — Fossils (coming)
• Things of Science #275 (Sep) — Simple Machines
• Things of Science #276 (Oct) — Copper
• Things of Science #277 — Yeast From Trees

1964

• Things of Science #279 – Polymer Fiber (coming)
• Things of Science #280 – Seeds (coming)
• Things of Science #281 – Triboluminescence (coming)
• Things of Science #282 – Papermaking (coming)
• Things of Science #283 – Spectral Color (coming)
• Things of Science #285 – Pinhole Photography (coming)
• Things of Science #286 – Coal (coming)
• Things of Science #287 – Powder Metallurgy (coming)
• Things of Science #288 – Polarized Light (coming)
• Things of Science #290 – Acetate & Triacetate Fibers (coming)

1965

• Things of Science #291 – Artist’s Colors (coming)
• Things of Science #292 – Seeds From Tree Farms (coming)
• Things of Science #293 – Water Soluble Plastics & Paper (coming)
• Things of Science #294 – Aluminum (coming)
• Things of Science #295 – Gemini III Model (coming)
• Things of Science #296 – Unusual Optical Properties in Minerals (coming)
• Things of Science #297 – Corn By-Products (coming)
• Things of Science #298 – Carbon Black (coming)
• Things of Science #299 – Textile Fiber Identification (coming)
• Things of Science #300 – Polypropylene (coming)
• Things of Science #301 – Unusual & Specialized Papers (coming)

1966

• Things of Science #303 – Humidity (coming)
• Things of Science #305 – Reactivity Of Metals (coming)
• Things of Science #306 B — Topology
• Things of Science #308 – Latex (coming)
• Things of Science #310 – Static Electricity (coming)
• Things of Science #313 — Measurement

1967

• Things of Science #315 – Hearing (coming)
• Things of Science #316 – Miniatures Flowers (coming)
• Things of Science #317 – Cast Iron (coming)
• Things of Science #318 — Center of Gravity
• Things of Science #319 – Color (coming)
• Things of Science #321  — Magnetism
• Things of Science #322 — Buoyancy
• Things of Science #323 — Chromatography

1968 (complete)

• Things of Science #327 — Touch
• Things of Science #328 — Soilless Gardening
• Things of Science #329 — Computer
• Things of Science #330 — Salt
• Things of Science #331 — Linkages
• Things of Science #332 — Sundial
• Things of Science #333 — Sound
• Things of Science #334 — Aerodynamics
• Things of Science #335 — Corrosion
• Things of Science #336 — Heat
• Things of Science #337 — Treated Cotton Fabrics
• Things of Science #338 — Crystal Growth

1969

• Things of Science — Abacus
• Things of Science — Fumed Silica
• Things of Science — Geometric Models
• Things of Science — Gravity
• Things of Science — Probability
• Things of Science — Surface Tension
• Things of Science — Taste
• Things of Science — The Grasses

1970 (complete)

• Things of Science — Chemical Indicators
• Things of Science — Color Vision
• Things of Science — Curves
• Things of Science — Electricity
• Things of Science — Fossils
• Things of Science — Herbs
• Things of Science — Holiday Ornaments
• Things of Science — Mathematical Pattern Folding
• Things of Science — Polarized Light
• Things of Science — Sextant
• Things of Science — Simple Machines
• Things of Science — Symmetry

1971

• Things of Science — Humidity
• Things of Science — Hydrophobic Fumed Silica
• Things of Science — Liquid Crystals
• Things of Science — Measurement
• Things of Science — Pendulum
• Things of Science — Plastics
• Things of Science — Recycling
• Things of Science — Soybeans and Soy Proteins
• Things of Science — The Sense Of Smell
• Things of Science — Topology
• Things of Science — Vision

1972

• Things of Science — Rocks
• Things of Science — Electrostatics
• Things of Science — Center Of Gravity
• Things of Science — Seashells (coming)
• Things of Science — Mirrors (coming)
• Things of Science — Solar Energy (coming)
• Things of Science — Stars and Constellations (coming)
• Things of Science — Jars And Bottles (coming)
• Things of Science — Life Cycle of a Can (coming)
• Things of Science — Color
• Things of Science — Touch (coming)

1973 (complete)

• Things of Science — Chemical Models
• Things of Science — Herb Seeds
• Things of Science — Metric System
• Things of Science — Natural Rubber
• Things of Science — Computation
• Things of Science — Crystal Growth
• Things of Science — Copper Basin Geology
• Things of Science — Sound
• Things of Science — Motion
• Things of Science — Mathematical Mechanisms
• Things of Science — Aerodynamics
• Things of Science — Man-Made Fibers

1974

• Things of Science — Optical Illusions (coming)

1975

• Things of Science — Figures of Maximum Area (coming)
• Things of Science — Gravity (coming)
• Things of Science — Heat (coming)

1976

• Things of Science — Electricity (coming)
• Things of Science — Herb Seeds (coming)
• Things of Science — Pendulum (coming)

1977

• Things of Science — Fossils (coming)
• Things of Science — Friction (coming)
• Things of Science — Light (coming)
• Things of Science —  Solar Energy (coming)

1978

• Things of Science — Aerodynamics (coming)
• Things of Science — Color (coming)
• Things of Science — Rainbow Holography (coming)
• Things of Science — Sextant (coming)
• Things of Science — Sound (coming)
• Things of Science — Super Slurper (coming)
• Things of Science — Taste (coming)

1979

• Things of Science — Afterimage (coming)
• Things of Science — Curves (coming)
• Things of Science — Magnetic Force (coming)
• Things of Science — Reflection (coming)
• Things of Science — Sundial (coming)
• Things of Science — The Skin Senses (coming)
• Things of Science — Vegetable Seeds (coming)
• Things of Science — Wind Power (coming)
• Things of Science — Work and Energy (coming)
• Things of Science — Xerography (coming)

1984

• Things of Science — Acid-Base Indicators (coming)
• Things of Science — Conchology (coming)
• Things of Science — Optical Illusions (coming)

1985

• Things of Science — Paper Folding Math (coming)
• Things of Science — Sundials (coming)

1986

• Things of Science — Gliders (coming)
• Things of Science — Sea Shells (coming)
• Things of Science — Wind Machines (coming)