the preserved letters it is clear that Bergman did not offer to write a preface until
spring 1777. Bergman did, however, borrow the manuscript, which caused Scheele
to worry. On March 8, 1776, he wrote to Gahn:
Fig. 21.4 The title page of the rare first edition of Scheele’s book on air and fire. This copy
belongs to Gothenburg University Library. Photo Anders Lennartson
21.3 Scheele’s Book on Air and Fire
285
spring 1777. Bergman did, however, borrow the manuscript, which caused Scheele
to worry. On March 8, 1776, he wrote to Gahn:
Fig. 21.4 The title page of the rare first edition of Scheele’s book on air and fire. This copy
belongs to Gothenburg University Library. Photo Anders Lennartson
21.3 Scheele’s Book on Air and Fire
285