Plate XIX depicting various forms of bacterium present in urine. The figures are identified as follows:

Figure 1: Tubercle Bacilli. Stained red, the majority are slightly curved...The other bacteria and the nuclei of the pus-corpusles are stained blue.

Figure 2: Gonococci. Partly extra- and partly intra-cellular. The characteristic form of the pairs is clearly shown.

Figure 3: Large Bacilli (frequently found in decomposing urine). Stained with methylene blue.

Figure 4: Staphylococci in large and small groups. Stained with methylene blue.

Figure 5: Blood Pigment. In the form of irregular brown flakes of various sizes, also leucocytes and epithelial cells, almost all of which are squamous.

Figure 6: Squamous Epithelium, Erythrocytes, decolourised (in the centre) Leucocytes, and Colloid casts of varying size and form.