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Seva,

Is this link working for you?

https://cornell.box.com/s/rafx7ue412ylu7svl0j6

Coincidentally, I just made contact with the Cornell Chemistry Dept 
yesterday.  I had set this issue aside for a while.

-Karl

On 9/19/14 8:23 AM, seva, soundcurrent mastering wrote:
> yep. login wall.
>
> On Wed, Jul 23, 2014 at 5:18 PM, Richard L. Hess <[log in to unmask]>
> wrote:
>
>> Hi, Karl,
>>
>> This is very interesting.
>>
>> The Wikipedia article discusses acidic fumes/vapors are emitted by PVC
>> (the basefilm of some early 1940s and 1950s tapes) and polyurethane (a
>> eidely used binder) as well as wood, cork, non-archival cardboard, paper,
>> and cotton.
>>
>> It is good to know it's a salt, but, unfortunately, the photo is behind a
>> login wall.
>>
>> Cheers,
>>
>> Richard
>>
>>
>>
>> On 2014-07-23 3:41 PM, Karl Fitzke wrote:
>>
>>> Still hoping to engage someone at Cornell with mass spectrometry
>>> capability, but today Mycologist Dr. Kathie Hodge of Cornell Plant
>>> Science generously put a few tapes under the microscope and gave us the
>>> representative photo at the link below.   We looked even closer and it
>>> is surely some kind of salt.
>>>
>>> Kathie also shared the finding with a snail taxonomist, who said that
>>> this looks like Byne's disease.
>>>
>>> https://cornell.app.box.com/files/0/f/2153689224/1/f_19287922333
>>>
>>> http://en.wikipedia.org/wiki/Byne%27s_disease
>>>
>>> -Karl
>>>
>>>   --
>> Richard L. Hess                   email: [log in to unmask]
>> Aurora, Ontario, Canada                             647 479 2800
>> http://www.richardhess.com/tape/contact.htm
>> Quality tape transfers -- even from hard-to-play tapes.
>>
>>

-- 

Karl Fitzke
Audio Engineer
Macaulay Library
Cornell Lab of Ornithology
159 Sapsucker Woods Road
Ithaca, NY 14850

607-254-1100

[log in to unmask]

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