But notwithstanding this diversity in form, the general plan constantly kept in view by the Divine Architect has been the central idea of combining lightness with the greatest possible degree of strength.  The bones of the arms and legs are round were triangular, and hollow, thus giving with the same weight a greater degree of strength that have solid, besides affording a larger surface for the attachment of muscles.

This quick little section doesn’t make a lot of sense when you read the first sentence, you have to remember that they’re talking about bones.  The paragraph structure essentially of this section is what is slightly misleading.  My grammar school English teacher would criticize a writer for not providing a topic sentence at the beginning of the paragraph.

Regardless they have hit on a novel last backed up the design of the human body, the design of bones.  There many fascinating aspects about the human body and the strength and weight of bones is definitely a topic that has been worthy of consideration and study for many years.  In some ways we have only recently begun to understand just how important the design of bones are in carrying mass and dealing with impact.  So in this case the writers actually touching on a very interesting topic even though they are doing that and a manner that is a hundred years out of date and slightly out of focus.