14.—GRANULE BACILLUS FROM YOGHOURT. SHREDDED PREPARATION OF A FRESH SKIM-MILK CULTURE 110 15.—GRANULE BACILLUS FROM YOGHOURT, CULTIVATED AFTER THE USUAL AGAR METHOD 110 16.—GRANULE BACILLUS FROM YOGHOURT. AGAR MILK SUGAR CULTURE 110 17.—_Bacteria W._ FROM MILK, CULTIVATED TWENTY-FOUR HOURS 110 18.—AGAR MILK SUGAR CULTURE. FROM THE ORIGINAL BULGARIAN YOGHOURT 112 19.—AGAR MILK SUGAR CULTURE. SURFACE COLONY OF GRANULE BACILLUS FROM CALF'S STOMACH 112 20.—AGAR MILK SUGAR CULTURE. DEEP-LYING COLONY OF GRANULE BACILLUS FROM CALF'S STOMACH 112 21.—AGAR MILK SUGAR. COLONY OF _Bacterium W._ FROM YOGHOURT 112 22.—TWO COLONIES OF _Bacillus Acidophilus_ FROM CALVES' MANURE 114 23.—BEER-WORT GELATINE 114 24.—SHREDDED PREPARATION OF BULGARIAN ORIGINAL YOGHOURT 114 25.—GRANULE BACILLUS FROM YOGHOURT. CULTIVATED IN SKIM MILK IN TWENTY-FOUR HOURS 114 26.—_Bacteria W._, AGAR MILK SUGAR CULTURE 116 27.—_Bacteria acidophilus_ FROM CALVES' MANURE 116 28.—MUCUS FROM CALF'S STOMACH INOCULATED INTO MILK AFTER EIGHT TRANSFERRINGS 116 29.—DIPLOSTREPTOCOCCUS FROM YOGHOURT. PURE CULTURE IN SKIM MILK 116 30.—PHOTO-MICROGRAPH OF PREPARATION MADE FROM YOGHOURT, SHOWING YEAST CELLS 118 31.—PHOTO-MICROGRAPH OF SMEAR FROM GREEK CURDLED MILK CALLED "GIAOURTI" 118 32.—PHOTO-MICROGRAPH OF SOURED MILK INOCULATED WITH A TABLET CONTAINING VIABLE AND PURE CULTURES OF _Bacillus bulgaricus_ 120 33.—PHOTO-MICROGRAPH OF MILK INOCULATED WITH A FERMENT TABLE IN WHICH _Bacillus bulgaricus_ IS NO LONGER VIABLE 120 34.—PHOTO-MICROGRAPH OF SMEAR OF CULTURE OF _Bacillus bulgaricus_ 122 35.—_Bacillus bulgaricus_, SHOWING THE CULTURES IN ENGLISH COW'S MILK 124 36.—PHOTO-MICROGRAPH OF PURE CULTURE OF _Bacillus bulgaricus_ 124 37.—PHOTO-MICROGRAPH OF SMEAR OF COMBINED CULTURE OF _Bacillus bulgaricus_ AND _Bacteria paralacticus_ 124 38.—PHOTO-MICROGRAPH OF SMEAR OF ONE-MONTH CULTURE OF _Bacillus bulgaricus_ 126