There are stags of ten roaming abroad unstalked; and perchance that is a hart royal swelling his broad front on yonder scaur.

The dragon's ire, more fierce than fire, laid low their towers and houses frail.

Michael Preston has dubbed this form of riddle the chemical rebus (1982:117).[…]Meanwhile, down in the freshman chemistry office, scores of these same rebi are posted on a billboard for another purpose. Undergraduates use chemical rebi to play with recently acquired knowledge, sometimes to affirm a conceptual mastery which is exceedingly difficult.

[H]e disappeared into his house much as a startled weazel makes for its hole.