meme roche le nom de diorite,"5 but Haiiy6 himself did not publish this until 1822. In 1827 Brongniart7 himself abandoned the term "diabase" in favor of "diorite," for he considered it "utile a la sci-ence de diminuer autant que possible les synonymes qui fatiguent la m6moire et jettent de l'incertitude dans les d6terminations." With
![](/images/caleb/296.jpg)