A method is described whereby fresh specimens of neural tissues are examined in squashes under the phase microscope. When squashed in contact with the sensitive tetrazolium derivative known as ' INT' , granules of formazan are precipitated around the mitochondria within the neurocytoplasm. Application of these techniques to squashes of the spinal cord of the ray has given a direct demonstration...

Abstract In the case of fruit syrups, consumers prefer thicker, deep-coloured ones because they remind them good old homemade ones. Physical properties – as viscosity, colour, refractive index, soluble solid content (SSC), and electrical impedance - syrups flavoured with raspberry or orange juice were determined. The change measured physical was determined in three different experiments: 1. eva...

Mosquitoes were infected by intrathoracic inoculation. About 95% head squashes were positive for dengue virus antigen on the 15th post infection day (PID). Esterase activity was determined in the homogenates prepared from the salivary glands and midguts on different PIDs of dengue virus inoculated and control mosquitoes showed that it was consistently higher in the virus-infected batches.