Dear Lederberg :
[Phi].10.174 acts on my H, not on B.  It is a typoid phage.  I have not tested cross-resistance on H.
Bandet[?] small acts on my R, not on B+ It acts on all R/T, and R/Bts is sensitive to all T.
Bandet large has same host range as T1.
C36 acts on all coli stocks I have tested, including all B/T.  I could not get any B/36.
T16 does not act on B/6, nor on B/7, but all other G/T are sensitive.
Al H.