Complex sentence: He only fully changed to the Linnaean system in the edition of "The Gardeners Dictionary" of 1768Miller was impressed, and from then on started to arrange the garden according to Linnaeus' system.
Split into simpler sentences: He only fully changed to the Linnaean system in the edition of "The Gardeners Dictionary" of 1768. Miller ultimately was impressed, and from then on started to arrange the garden according to Linnaeus' system.