Historical accounts, of the sort published in train books (therefore,
they need a POUND of salt, before consumption) state that the tunnel was
encountered by an IRT tunnel under construction during the first decade
of the 20th century.  This encounter would have been about 30 years
after the pneumatic subway was built and used for less than a year.  The
subway line under construction may have been the Broadway line, (which
may or may not have been IRT?) since, I believe, the pneumatic subway
ran across (under) Broadway, from the basement of one building to that
of another, while the later subway ran along the line of the street.
Presumably, the later subway would have taken out the central part of
the cross-street tunnel, but remains of it might exist to either side of
this impact, unless chewed up entirely by the mind-boggling number of
utility lines that are fitted in below New York's streets (more pipe,
conduit, tunnels, boxes, etc. than dirt, these days).  Any remnants
would be an entirely unique resource.

George Myers?

D. Babson.


-----Original Message-----
From: HISTORICAL ARCHAEOLOGY [mailto:[log in to unmask]] On Behalf Of
geoff carver
Sent: Friday, May 12, 2006 4:08 PM
To: [log in to unmask]
Subject: sub-rosa subway

someone on a german-language list had a question about whether there had

been any archaeological investigations of any remains of alfred ely
beach's 
pneumatic subway in NYC
anyone heard/seen anything about it?