Hello Lesley,
My wife always describes anything over 15 deg C as roasting. I, myself (not a hardy Celt) need at least 30 to get my shorts on. You can tell your friend that it's so murky today, I can scarcely see the chimneys in the bay (Poolbeg power station), and my office is on the coast near Merrion Gates.
Anyway, to the streets:
Camphill Place
Extant. Runs due south from Canal Street opposite Buchanan Street (OS 1858 plate XII.2.23). Shown on 1838 map, but unnamed.
Ferguslie
Extant. Continuation of George Street heading westwards out of town
Barclay Street
Ran north-to-south between George and Canal Streets (OS 1858 plate XII.2.23)
Broomlands
Extant. Runs east-to-west continuation of High Street
Thread Street
Extant. Runs north-eastwards from River Cart south of the Abbey. Now a continuation of Gordon Street
Wallneuk Road
Extant. Runs north-eastwards parallel to railway line from Renfrew Rd on north side of town. Gallowhill Road on OS map of 1858 (plate XII.2.10)
New Sneddon
Ran north-eastwards close to R. Cart on the north side of town.
I have scanned a large portion of the 1838 map, which I'll gladly send on, if you send me your email address by PM. Otherwise you can locate the streets on ordnance survey map of 1858 available from the NLS.
Any questions, give me a shout.
Justin
PS My cousins live in the eastern suburb of Caulfield North - is that a separate town?