This subtle astral encasement of nineteen elements survives the death of the physical body, which is made of sixteen gross metallic and nonmetallic elements.
"Autobiography of a YOGI"
Paramhansa Yogananda
Directly, because there was no other way he could move about on a nonmetallic asteroid.
"Anchorite"
Randall Garrett
In an arrangement printed in idea-order, though relegating the genera mineral, nonmetallic, metallic, nonmineral, vegetable, animal, to the mind unaided by printed words, the different species of the same genus may be kept together except that species for which no title has been provided must go back to the subclass under which the named species are indented.
"The Classification of Patents"
United States Patent Office