Sentence:  The main strength of the text, however, lies not so much with the "reductio ad absurdum" of the world soul hypotheses, but in its critical assessment of Leibniz's monadology and Robinet's biological <WSD>transformationalism</WSD>, on the one hand, and in Ploucquet's own theory of finite substances as 'real images', "imagines reales", of the infinite divine force, on the other hand; in short, in his own alternative of natural philosophy. 
Meaning of the word marked with <WSD> tags:  A theory proposed by Robinet in the 18th century that posits a single, created prototype for all species of plants and animals.