Colorized scanning electron micrograph of partially dried red blood cells clotted on the cotton fibres of a gauze wound dressing. Image was collected at low vacuum to avoid charging of cotton fibres

Human duodenal epithelium, at the level of the crypt. Fixation was performed in buffered formal-calcium. Peroxisomes are stained with DAB by their catalase activity at pH 10.5, postosmicated and embed...

Newt (Notopthalmus viridescens erythrocytes were isolated in 0.1M KCl, spread on the surface of Na-citrate, picked up on formvar-carbon films, fixed with glutaraldehyde and negatively stained with 2% ...

Newt (Notopthalmus viridescens erythrocytes were isolated in 0.1M KCl, spread on the surface of Na-citrate, picked up on formvar-carbon films, fixed with glutaraldehyde and negatively stained with 2% ...

Newt (Notopthalmus viridescens erythrocytes were isolated in 0.1M KCl, spread on the surface of Na-citrate, picked up on formvar-carbon films, fixed with glutaraldehyde and negatively stained with 2% ...

A drop of a preparation of chicken erythrocyte nuclei was exposed to low ionic strength and centrifuged onto a formvar-carbon film, fixed with paraformaldehyde and negatively stained with sodium phosp...

Newt (Notopthalmus viridescens erythrocytes were isolated in 0.1M KCl, spread on the surface of 5mM Na-citrate, picked up on glow discharged formvar-carbon films, fixed with glutaraldehyde and parafor...

Nucleated erythrocytes from the newt Notopthahmus viridescens were spread on water, the dispersed chromatin picked up on carbon-formvar grids, fixed with paraformaldehye, critical point dried and shad...

Nucleated erythrocytes from chicken were spread on water, the dispersed chromatin picked up on carbon-formvar grids, fixed with paraformaldehye, critical point dried and shadowed with platinum. Image...

Nucleated erythrocytes from chicken were spread on water, the dispersed chromatin picked up on carbon-formvar grids, fixed with paraformaldehye, critical point dried and shadowed with platinum. Image...