Click Here for More Images from iStock- 15% off with coupon 15FREEIMAGES 
\
Cover of an old red book on a black background. The book is unfolded. Side view.
centropyxis aculeata (amoeboid organism) under the microscope - optical microscope x400 magnification
Old book journal cover, with worn marbled paper pattern, scuffed leather spine and corner
superior view of heart showing opening of aorta, superior vena cava, pulmonary trunk with related valve
Photomicrograph of rotifer, probably Rotaria rotatoria. Rapidly rotating cilia at top of head, internal organs visible. Green circles are algae. Live specimen. Original image at 40X, wet mount, transmitted brightfield illumination. Indistinct image due to motion blur of live specimen and very shallow depth of field of brightfield illumination.
Solar radiation analysis of a public building. Multipurpose common public space analysis with parametric louvers to control sun exposure and radiation.
Heart Color Ultrasound Medical Examination Image
Algae under microscopic view, Diatoms, phytoplankton, fossils, silica, golden yellow
In vitro bacterial culture
Results from a lung/pulmonary function test (PFT). Shows spirometry graphs and measurements. Results are within normal limits. PFTs are used to diagnose respiratory problems.
plant rape flower cross section under light mircoscope with white background
Close up Plant epidermis with stomata or Leaf Epidermis (Stomata) under microscope.
Collage with old papers
Notoedres cati under the microscope. Notoedric mange, also referred to as Feline scabies, is a highly contagious skin infestation caused by an ectoparasitic and skin burrowing mite Notoedres cati.
Open Book, Title Page: Fables of La Fontaine
Diatoms, algae under microscopic view, phytoplankton, fossils, silica, golden yellow algae
Orange Square wooden box filled with orange book replicas
Alternaria spore was zoom by transmission electron microscope. Alternaria is a genus of ascomycete fungi. Alternaria species are known as major plant pathogens.
Triangular pollen grains of
Open blank passport on dark grey table, closeup
Squash preparation of onion root tip cells stained to reveal chromosomes, Bright field illumination, light microscopy. This image was taken with the X40 objective lens. Depth of focus is extremely low at this magnification. Smaller apertures give greater depth of focus, but image quality deteriorates and resolution is greatly reduced. The aperture in this image was optimised for contrast and resolution. Chromatic abberation is inevitable in light microscopy, but has been kept to a minimum in this image.
Demodex mange from a microscope view. The parasite causing a skin disease -Demodecosis.
Aspergillus fumigatus is one of the most common Aspergillus species to cause disease in individuals with an immunodeficiency. This pathogen primarily causes invasive infection in the lung.
Freshwater aquatic zooplankton and algae under microscope view
plant Flower bud of Lilium brownii var.viridulum T.S.\nunder light mircoscope with white background
Photograph of autotrophic Euglena through microscope under brightfield illumination.
Open Book, Title Page: TO THE LIGHTHOUSE by Virginia Woolf
grey book isolated on white, blue frame for title on the spine
Grunge paper background with space for text or image
Free Images: "bestof:Chambers - Volume 1 - 0643.jpg Cyclopaedia Chambers page 1 0642 0643 0644"
Terms of Use   Search of the Day