In his paper , haeckel drew by hands the morphological features of early embryos of several animal species .
在这篇论文里，海克尔用手笔画下了他所观察到的多种动物早期胚胎的形象。
In current philosophical literature , whenever no special qualification is added , monism generally means the modified materialistic monism of haeckel .
在当前的哲学文献，只要没有特殊的资格加入，一元论一般指海克尔修改唯物主义一元论。
Saleeby and haeckel indorsed and defended " the shame of the sun , " for once finding themselves on the same side of a question .
