Page 56 - Ethel D. Hume - Bešam ili Paster: Izgubljeno poglavlje u istoriji biologije
P. 56

BfiCHAMP'S BEACON EXPERIMENT                 53

    isms for the processes of fermentation was thus shown
    clearly.
      Bechamp further explained the action of moulds: "They
    act after the manner of ferments."
      "Whence comes the ferment?"
      "In these solutions there existed no albuminoid sub-
    stance; they were made with pure cane-sugar, which,
    heated with fresh-slaked lime, does not give off ammonia.
    It thus appears evident that air-borne germs found the
    sugared solution a favourable medium for their develop-
    ment, and  it must be admitted that the ferment is here
    produced by the generation offungi."
      Here, in direct contradiction to Pasteur's account of the
    spontaneous origin of beer-yeast and other organisms,
    Bechamp gave proof positive of Schwann's teaching of air-
    borne germs, and further specified yeast to be of the order
    of fungi. Remarkable though such a clear pronouncement
    was at a date when scientific ideas were in chaotic con-
    fusion, the great teacher went much further afield in his
    observations.
                        —
      Moreover he stated:  "The matter that develops in the
    sugared water sometimes presents itself under the form of
    little  isolated  bodies,  sometimes under  the form  of
    voluminous colourless membranes, which come out in one
    mass from the flasks.  These membranes, heated with
    caustic potash, give off ammonia in abundance."
      Here he noted the diversity of the organisms of these
    moulds, an observation that was to result in a deep insight
    into cellular life, and his foundation ofa first proper under-
    standing of cytology.
      He had a further definite explanation to make on the
                             —
    action of moulds, namely:   "The Transformation that
     Cane-Sugar Undergoes in the Presence of Moulds may be
     Compared with that Produced upon Starch by Diastase."
                                          1
      This particular conclusion, he tells us, had an enor-
     mous bearing on the subject, and was such a novel idea at
    that epoch that Pasteur, even later, ignored and denied it.
      1
       Les Microzymas, par A. Bdchamp, p. 57,
   51   52   53   54   55   56   57   58   59   60   61