. Urinary deposits : their diagnosis, pathology, and therapeutical indications. Fig. 38. Fig. 39. It sometimes happens that the oxalate is present inthe form of exceedingly minute crystals: it then re-sembles a series of minute cubes, often adhering toge-ther like blood-discs : these, however, are readily and MICROSCOPIC CHARACTERS. 213. Fig. 40. distinctly resolved into octa-hedra under a higher magnify-ing power. More rarely oxa-late of lime assumes a some-what different form, apparentlybeing made up of a squareprism, with a four sided pyra-mid at each end (Fig. 40) form-ing a dodecahedron.
. Urinary deposits : their diagnosis, pathology, and therapeutical indications. Fig. 38. Fig. 39. It sometimes happens that the oxalate is present inthe form of exceedingly minute crystals: it then re-sembles a series of minute cubes, often adhering toge-ther like blood-discs : these, however, are readily and MICROSCOPIC CHARACTERS. 213. Fig. 40. distinctly resolved into octa-hedra under a higher magnify-ing power. More rarely oxa-late of lime assumes a some-what different form, apparentlybeing made up of a squareprism, with a four sided pyra-mid at each end (Fig. 40) form-ing a dodecahedron. If thecrystals be collected and ig-nited on platinum foil, oxalic acid is decomposed, andcarbonate of lime left; the subsequent addition of dilutenitric acid dissolves the residue with effervescence. This is by far the most satisfactory process for thedetection of oxalate of lime, and, although it re-quires a little tact, still, after some trials, it can readilybe performed in a very few minutes. But even thislittle waste of time may be avoided, by placing a dropof the lowermost stratum of the urine on a plate ofglass, placing over it a fragment of thin glass or mica,and then submitting it to the microscope : the crystalsdiffused through the fluid becoming very beautifullydistinct (123). In this way, however, it is obviousthat a
Size: 1590px × 1571px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1850, booksubjecturinary, bookyear1853
