Figure 1

Images 1 to 5. Bacillus halobius ruber. Image 1 - Part of a culture on fish agar in a Petri dish. Inoculation of the tile through needle stabbing in rows. On one part of the resulting colonies of yellowish-grey bacteria, red colonies of Bacillus halobius ruber have developed that in the photograph appear black and are noticeable due to their odd gleam. The saturation of the culture with common salt appears at several places with the crystallizations of the salt, and the age of the culture at the same time with the rips that have arisen at the edges of the crystals and near the border of the dish as a consequence of the drying agar. Enlargement 3/2. Image 2 - Bacteria smeared out in saturated common salt solution out of the culture on a clay tile. The light quadrants and squares are the places where crystals had been formed. Enlargement 370/1. Image 3 - Bacilli of a similarly made preparation. Enlargement 750/1. Image 4 - Little rods and longer threads. Smear out of a culture in liquid nutrient base. Enlargement 750/1. Image 5 - Altered little rods out of an old culture on horse serum with saturated salt solution smeared out. Enlargement 750/1.