Professor  Babbitt   is   the  author  of  the  textbooks   "Sewerage  and  Sewage  Treat-
ment",   "Plumbing",    ""./ater  Supply  and  Purification",    and  of  Section  X  of  the
Civil  Engineers'   Handbook.      He   is   co-author  with  J.J.   Doland  of   "Water  Supply
Engineering",    ajid  is   the  author  of  three  bulletins  and  co-author  of  four  more
on   sewage  and   sewage   disposal   issued  by  the  Engineering  Experiment    Station  that
have  been  widely  read  and  have  boon  considered  as  valuable  contributions  to   the
fund  of  literature  in  the  field  of   sanitary  engineering.
John   Stanley  Cntfidell   (3.S.,    I90U,    and  C.S.,    I906,    New  York  University)    was
employed  in  engineering  practice   during  I90U-II  and  served  as  Assistant  Professor
of  Civil  Engineering  at  Pennsylvania  State  College   during  19II-I5.      For  the  next
eleven  years  he  was  associated  with  the  Barrett   Company,    and  then  he  joined  the
faculty  of  the  University  of   Illinois   in  September,    I926,    as  Professor  of  High-
way Engineering  to   fill   a  newly-created  position  of  that   title.
Professor  Crandcll   is   author  of  the   section   "Highway  Engineering"   in  the
American  Civil  Engineers'   Handbook.
