Sentence:  XLVI. T<small>HE</small> "Ambua", ſo the Natives of "Brazil" call the "Millepedes" and the "Centipedes" Serpents. ... / I<small>N</small> theſe <WSD>"Multipedes</WSD>", the Mechaniſm of the Body is very curious; ... 
Meaning of the word marked with <WSD> tags:  A creature with many feet, especially a centipede, millepede or similar creature.