Viking Blacksmiths Forge The Sword
Photo Researchers
Roentgens X-ray Machine, 19th Century
Science Source
Fingerprints Of Vincenzo Peruggia, Mona
Photo Researchers
Anesthesiology
Brooks Brown
Roman Surgical Instruments, 1st Century
Science Source
Luca Pacioli, Franciscan Friar
Science Source
Astronaut Sunita L. Williams
Nasa
Teslas And Westinghouses Lab
Science Source
Norwegian Forest Kittens
Jean-Michel Labat
Camarasaurus Tail Bone
Ted Kinsman
Opthalomology
Brooks / Brown
Tools Used To Excavate Dinosaur Fossils
Ted Kinsman
Tools Used To Excavate Dinosaur Fossils #1
Ted Kinsman
Tools Used To Excavate Dinosaur Fossils #2
Ted Kinsman
Tools Of Archeology
Neil Fletcher / Dorling Kindersley
Tlingit Workshop
Ron Sanford
Chinese Ear Cleaning Tools
Science Source
Family With Home Improvement Tools
H Armstrong Roberts ClassicStock
Tribe Of Homo Erectus
Publiphoto
Heart & Stethoscope Illustration
George Mattei
Saint-acheul, Acheulean Archeological
Science Source
Robinsons Anemometer, 1846
Science Source
Edison Fluoroscope, 1896
Science Source
Acheulean Hand-axes, Lower Paleolithic #1
Science Source
High Flux Isotope Reactor Pool
Science Source
Bunsen-kirchhoff Spectroscopic
Science Source
Petri Dishes #2
Sigrid Gombert
Portable Laboratory Of Johann Joachim #3
Science Source
X-ray Of Ovaries #2
Ted Kinsman
Men Operating Milling Machines
H. Armstrong Roberts/ClassicStock
Dental Equipment #4
Photo Researchers, Inc.
Criminal Being Held Down For Mug Shot
Photo Researchers
Bone Clamp #1
Science Source
Medical X-ray, 1896
Science Source
Cole Astronomical Compendium Dial, 1569
Science Source
Polio Victims In Iron Lungs
Science Source
Stone Age Hand-axes From Hoxne, Suffolk
Wellcome Images
Acheulean Hand-axes, Lower Paleolithic
Science Source
High Flux Isotope Reactor Pool #1
Science Source
Navigational Instruments, E.g. Sextant
Wellcome Images
High Flux Isotope Reactor, Flux Trap
Science Source
Cross-staff, Navigational Instrument
Science Source
Galvanis Frog Experiments, 18th C
Wellcome Images
Black Hills Gold Rush, 1889 #2
Science Source
K-t Boundary
Gianni Tortoli
Historic Medicine
Brooks/brown
Surgery, Historical Medicine
Brooks/brown
Hafted Knives
Millard H. Sharp
Grading
Photo Researchers, Inc.
Father Ferdinand Verbiest, Jesuit
Science Source
Male Eastern Bluebird #12
Linda Freshwaters Arndt
Artist Palette With Paint Knife #5
Jim Corwin
Paintbrushes Lined Up On Palette #4
Jim Corwin
Stone Age Hand-axes From Hoxne, Suffolk #1
Science Source
Tesla Coil
Science Source
Hfir, Bio-sans
Science Source
Hadleys Quadrant And Sextant, 1806
Wellcome Images
Pill Counter With Pills
Science Stock Photography
Chinese Acupuncture, Nine Ancient
Science Source
Fresnel Lens #2
Eunice Harris
Mechanic Repairing Brain
Ikon Ikon Images
Red Cross Nurse, Historical Medicine
Brooks/brown
Wooden Flaking-tools, American Indian
Wellcome Images
Animal Hide Scraping Tool
Millard H. Sharp
Homo Sapiens Cutting Early Stone Tools
Publiphoto
Surgeons Medical Tools
Brooks / Brown
Surgeons Medical Tools #1
Brooks / Brown
4 Year Old Boy In Tool Shed, C.1950s
H. Armstrong Roberts/ClassicStock
Fremont Culture Clay Tools
Francois Gohier
Surgeons Medical Tools
Brooks/brown
Civil War Surgical Tools
Brooks / Brown