Photo Researchers ftp March 2011

Light micrograph of mature embryo of Capsella sp. plant. Magnification 60X when printed at 10cm.

Light micrograph showing several discrete carcinoid tumors in a patient's lung tissue. Magnification 25X when printed at 10 cm.

Cavernous hemangioma, a vascular disorder of the central nervous system characterized by grossly dilated blood vessels with a single layer of endothel...

Light micrograph showing of a portion of a cat cerebrum. The image has been enhanced for viewing the various cerebral layers. Magnification: 8X when p...

Light micrograph showing chronic pancreatitis, a long-standing inflammation of the pancreas that alters its normal structure and functions. Magnifica...

Light micrograph of a cross section of the colon of a cat, Mallorys trichrome stain. Magnification 60X when printed at 10cm.

Light micrograph of a cross section of the colon of a cat, Mallorys trichrome stain. Magnification 60X when printed at 10cm.

Light micrograph showing a cross section of the center of a cotton root. Magnification 240X when printed at 10cm.

Light micrograph showing a cross section of a cotton root, portion of ray. Magnification 240X when printed at 10cm.

Color-enhanced light micrograph showing a cross section of a cotton root, magnification 25X when printed at 10cm.

Light micrograph showing a cross section of the center of a cotton root. Magnification 60X when printed at 10cm

Light micrograph of a Cycad leaf, cross section. Magnification 20X when printed at 10cm.

Color-enhanced light micrograph showing Hypocotyl (seed shoot) of the Douglas Fir (Pseudotsuga menziesii). Magnification 60X at 10 cm.

Light micrograph showing Hypocotyl (seed shoot) of the Douglas Fir (Pseudotsuga menziesii). Magnification 60X at 10 cm.

Light micrograph of a cross section of a Douglas Fir (Pseudotsuga menziesii) needle (leaf). Magnification 40X when printed at 10 cm.

Light micrograph of a cross section of the duodenum of a cat, showing the layers from the longitudinal muscle down to the villi. Magnification: 25x at...

Light micrograph of a cross section of the duodenum of a cat, showing the layers from the longitudinal muscle down to the villi. Magnification 60X whe...

Light micrograph of a cross section of the duodenum of a cat, showing the longitudinal muscle, connective tissue (blue) and the villi. Magnification 2...

Light micrograph showing the sorus of a fern leaf in cross section. A sorus is a cluster of sporangia. These form a yellowish or brownish mass on the...

Light micrograph of hair from an Angora rabbit in polarized light. Magnification 60X when printed at 10cm.

Light micrograph of cotton fiber in polarized light. Magnification 60X when printed at 10cm.

Light micrograph showing Alpaca fibers under polarized light. Magnification 60X when printed at 10cm.

Light micrograph showing hemp fibers under polarized light. Magnification 60X when printed at 10 cm.

Light micrograph showing ramie (Boehmeria nivea) fibers under polarized light. Ramie is a flowering plant in the nettle family. Magnification 60X when...

Light micrograph of silk fibers under polarized light. Magnification 60X when printed at 10 cm.

Light micrograph of frog blood, mostly nucleated red blood cells with a few smaller white blood cells. Oil immersion technique. Magnification 600X whe...

Color-enhanced light micrograph of frog skin in cross section, showing poison glands. Magnification 233X when printed at 10 cm.

Light micrograph of frog testis in cross section. Magnification 25X when printed at 10 cm.

Light micrograph of frog testicular tissue. Magnification 60X when printed at 10cm.

Light micrograph showing a section of frog embryo in advanced gastrulation. Magnification 60X when printed at 10cm.

Light micrograph showing Gaucher's cell, peripheral blood. Oil immersion technique. Magnification 600X when printed at 10 cm.

Light micrograph showing Gaucher's cells, peripheral blood. Oil immersion technique. Magnification 600X when printed at 10 cm.

Light micrograph of a section of mammalian large intestine showing goblet cells. Magnification: 120x at 10 cm.

Light micrograph showing hair follicles. Magnification: 60X when printed at 10 cm.

Light micrograph showing hair follicle. Magnification: 60X when printed at 10 cm.

Color-enhanced light micrograph of a sunflower (Helianthus sp.) stem in cross section. Magnification 60X when printed at 10 cm.

Capillaries in a matrix of liver cancer cells. Magnification 60X when printed at 10 cm.

Light micrograph of a section of a guinea pig's small intestine. Magnification: 120x at 10 cm.

Light micrograph showing LE cell aggregates in peripheral blood. Cell aggregation is the phenomenon by which dissociated cells intermixed in vitro ten...

Light micrograph of a section of cat (typically mammalian) liver tissue, showing characteristic radial patterns of cells gathered around a central vei...

Light micrograph of a section of cat (typically mammalian) liver tissue, showing characteristic radial patterns of cells gathered around a central vei...

Light micrograph of a section of cat lung tissue, with two blood vessels. Magnification 60X when printed at 10 cm.

Light micrograph of a section of cat lung tissue, with blood vessel. Note the blue-stained cartilage near the left of the image. Mallory's stain. Magn...

Light micrograph of a section of cat lung tissue, with blood vessels. Magnification 60X when printed at 10 cm.

Light micrograph of a section of lymph node from a guinea pig. Germinal centers lie along the periphery. Magnification: 60x when printed at 10 cm.

Light micrograph of a longitudinal section of Madrone (Arbutus sp) stem; magnification: 60X at 10 cm.

Color-enhanced light micrograph of a section of mammalian artery, clearly showing the thick-walled character of an artery. Magnification: 25x at 10 cm...

Light micrograph of a section of mammalian artery, clearly showing the thick-walled character of an artery. Magnification: 60X at 10 cm.

Light micrograph of a Mountain Hemlock (Tsuga mertensiana) needle in cross section. Magnification: 25X when printed at 10 cm.

Light micrograph of a Mountain Hemlock (Tsuga mertensiana) needle in longitudinal section. Magnification: 120X when printed at 10 cm.