[r-t] Extent of Cambridge-over minor methods

Philip Earis Earisp at rsc.org
Wed Jun 22 12:12:58 UTC 2005


Here is the first in an occasional series of messages highlighting
relevant stuff from other email lists.  This exchange occurred recently
on a shadowy unpublicised list called 'the drivel list', which I've
managed to infiltrate. 


================

115455 From: "nigelpointer" <nigel.pointer at ...> 
Date: Mon Jun 20, 2005 3:57pm 
Subject: RAS? (or anyone else?)  nigelpointer 
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  Sorry to do ringing for a second - Julian Morgan told me a little 
while ago that he had a composition (by John Leary?) of a (true!) 720 
of 10 Cambridge above minor methods. 

I can't find this composition on any web site and Julian isn't 
replying to the email address for him on Roger Bailey's site. 

Does anyone have the figures for this composition (or as many 
Cambridge above methods as possible into a true 720)?

Thanks,

Np 
 
 
115464 From: Richard Smith <richard at ...> 
Date: Mon Jun 20, 2005 8:37pm 
Subject: Re: [Ringing Drivel] RAS? (or anyone else?)  ras522000 
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  nigelpointer wrote:

> Julian Morgan told me a little while ago that he had a
> composition (by John Leary?) of a (true!) 720 of 10
> Cambridge above minor methods.
>
> Does anyone have the figures for this composition (or as many
> Cambridge above methods as possible into a true 720)?

I wasn't aware of such a composition, and I was about to
reply saying that such a composition seemed implausible to
me, but then I remembered that a few years ago I had
produced a composition containing eight of the Carlisle
eleven. (The missing methods were Carlisle, Whitley and
Wooler.)

This made me wonder whether I could get a variant of this
for methods from the Cambridge twelve. It turns out that it
is possible, though it took me quite a long time to get all
the bits to join up elegantly.

Here's the finished composition.

720 Spliced Surprise Minor (10m). Comp RAS

123456 Bo Bo Du Cm Yo
- 142356 Yo Bk Pr Bk Hu
- 125634 Hu He Pr Su Du
- 153462 Du Cm Yo Bo
- 136245 Cm Bv Bv Bv Bv
- 123645 He Su Cm
- 162345 Bo
- 145362 Su Su
------
- 123456

Contains no 65s at back and a plain lead of each method.

Methods: 48 each of Berwick (Bk), Hexham (He), Hull (Hu)
and Primrose (Pr); 72 each of Durham (Du) and York (Yo);
and 96 each of Beverley (Bv), Bourne (Bo), Cambridge (Cm)
and 96 Surfleet (Su).

If you do manage to get hold of Julian's composition, I'd be
interested in seeing it.

I'd be surprised if it were possible to get more than this
in an extent. Then again, yesterday I would have
tentatively suggested that about eight would have been the
maximum possible.

RAS
 
 
115466 From: "Oliver Hall" <orh197 at ...> 
Date: Mon Jun 20, 2005 11:07pm 
Subject: Re: [Ringing Drivel] RAS? (or anyone else?)  orh197 
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  > If you do manage to get hold of Julian's composition, I'd be
> interested in seeing it.

Message from Julian Morgan:

The figures of the Cambridge 10 composition by John Leary are below
(microSIRIL format). It is rotated from the version published in the
RW to avoid -65s. It looks as if RAS has rediscovered it.

Best wishes,
Julian

6 bells
Extent=C1,C2,C3,C4,C5,C6
C1=Hull-,Hull,Beverley-,Cambridge,York,Bourne,Bourne-
C2=Berwick,Cambridge,Berwick,Berwick-,Beverley,Beverley-
C3=Primrose,Beverley,York-,York,Primrose
C4=Bourne-,Beverley-,Cambridge-
C5=2Surfleet,Cambridge-,Bourne,Durham-
C6=Durham-,Durham,Surfleet,Hexham
York=&-3-4-2-3.4-4.3,+12
York-=&-3-4-2-3.4-4.3,+14
HULL-=&-3-4-2-3-34-3,+14
HULL =&-3-4-2-3-34-3,+16
BEVERLEY-=&-3-4-2-3.4-34.5,+14
CAMBRIDGE =&-3-4-2-3-4-5,+12
BOURNE =&-3-4-2-3-34-3,+12
BOURNE-=&-3-4-2-3-34-3,+14
BERWICK =&-3-4-2-3.4-34.5,+16
BERWICK-=&-3-4-2-3.4-34.5,+14
BEVERLEY =&-3-4-2-3.4-34.5,+12
PRIMROSE =&-3-4-2-3-4-5,+16
CAMBRIDGE-=&-3-4-2-3-4-5,+14
SURFLEET =&-3-4-2-3.4-2.5,+12
DURHAM-=&-3-4-2-3.4-34.1,+14
DURHAM =&-3-4-2-3.4-34.1,+12
HEXHAM =&-3-4-2-3.4-2.5,+16
 
 
 
115467 From: "nigelpointer" <nigel.pointer at ...> 
Date: Mon Jun 20, 2005 11:40pm 
Subject: Re: [Ringing Drivel] RAS? (or anyone else?)  nigelpointer 
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  > 720 Spliced Surprise Minor (10m). Comp RAS

Great stuff - thanks. 

Now all I've got to do is learn it for next Monday... :-(

Np
 
 
 
115468 From: Richard Smith <richard at ...> 
Date: Tue Jun 21, 2005 0:15am 
Subject: Re: [Ringing Drivel] RAS? (or anyone else?)  ras522000 
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  Thanks for forwarding that, Ollie.

Oliver Hall wrote:

> Message from Julian Morgan:
>
> The figures of the Cambridge 10 composition by John Leary are below
> (microSIRIL format). It is rotated from the version published in the
> RW to avoid -65s. It looks as if RAS has rediscovered it.

So it seems.

The underlying frameworks of my composition and John Leary's
are exactly the same -- two applications of the Bv-Du (or
Yo)-Bo splice, once each for Yo and Du, and then a six-lead
splice to grab Cm. However, the way we've joined the
courses together is quite different. (This isn't really
surprising. The basic plan is fairly obvious; joining them
together is the hard part.) For example, my extent has
eight bobs, John's twelve.

RAS 
 


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