JACKSON AND GRINDLEY. — ACETALS FROM QUINONES. 457 



precipitate was obtained at first. Uufortuuately, this work was under- 

 taken at the very end of the term, so that a more careful study of 

 these products must be postponed until next year, but these prelim- 

 inary experiments show that sodic phenylate does combine with 

 quinone, and therefore lend a certain amount of countenance to our 

 suggestion that phenoquinone is a hemiacetal. 



