> > From: "P. J. Alling" <[EMAIL PROTECTED]> > Date: 2008/11/28 Fri PM 02:25:58 GMT > To: Pentax-Discuss Mail List <pdml@pdml.net> > Subject: Re: GESO: Autumn Memories > > I believe that I cited Tannins as a possible cause, and I mentioned Oak > leaves as a source, (possibly incorrectly), due to their heavy > concentration of tannins. I've actually tried to make iron gall ink > using oak leaves as a source based on an old recipe, with indifferent > results. "Experts" would do well to look at literature published in the > 1800's sometimes it has answers to questions they haven't bothered to > ask, and a lot of this stuff will never be on line.
AFAIK, ink is best made from galls, ie, the growths made by the tree in response to an insect laying its egg in the plant's tissue. Some are spherical, others have more complex shapes. > > mike wilson wrote: > >> From: PN Stenquist <[EMAIL PROTECTED]> > >> Date: 2008/11/27 Thu PM 01:45:43 GMT > >> To: Pentax-Discuss Mail List <pdml@pdml.net> > >> Subject: Re: GESO: Autumn Memories > >> > >> I believe that the leaves are from sycamore tree. Other leaves don't > >> seem to leave such a distinct impression. > >> Paul > >> > > > > This seems to be the best answer I can find online. > > http://biojournalism.com/95-leaf-shadows-stained-concrete.html > > > > > >> On Nov 27, 2008, at 3:42 AM, mike wilson wrote: > >> > >> > >>>> From: "P. J. Alling" <[EMAIL PROTECTED]> > >>>> Date: 2008/11/25 Tue PM 04:06:37 GMT > >>>> To: Pentax-Discuss Mail List <pdml@pdml.net> > >>>> Subject: Re: GESO: Autumn Memories > >>>> > >>>> They look like they could be oak leaves, which are full of tannins. > >>>> That would stain the concrete and eventually be weathered away. > >>>> > >>> What I find odd is that they are (presumably) quite water soluble, > >>> to be leached out of the leaf into the concrete by rain or dew but > >>> then they are not washed away from there. Very, very intriquing. > >>> The other possibility is that it is a wax covering that is somehow > >>> being transferred to the concrete and then resisting removal. Plant > >>> waxes are rather persistent chemicals - carnauba wax, found in many > >>> polishes until the advent of modern polymers, is/was extracted from > >>> the surface of leaves. > >>> > >>> > >>>> mike wilson wrote: > >>>> > >>>>>> From: PN Stenquist <[EMAIL PROTECTED]> > >>>>>> Date: 2008/11/24 Mon PM 06:51:42 GMT > >>>>>> To: Pentax-Discuss Mail List <pdml@pdml.net> > >>>>>> Subject: Re: GESO: Autumn Memories > >>>>>> > >>>>>> Thanks Marnie. I've never seen this kind of impression anywhere > >>>>>> other > >>>>>> than the location where I shot these pics. At least I finally got > >>>>>> around to shooting them:-). BTW, I used the venerable Vivitar > >>>>>> Series 1 > >>>>>> 90/2.5 at f4. > >>>>>> > >>>>>> > >>>>> Do you know what sort of tree it is? It looks as if there is some > >>>>> residual resin being leached out and leaving the impression. > >>>>> > >>>>> > >>>>> > >>>>>> On Nov 24, 2008, at 12:58 PM, [EMAIL PROTECTED] wrote: > >>>>>> > >>>>>> > >>>>>> > >>>>>>> In a message dated 11/23/2008 5:20:53 P.M. Pacific Standard Time, > >>>>>>> [EMAIL PROTECTED] writes: > >>>>>>> Last year, I noticed a strange phenomenon on my morning runs. It > >>>>>>> seemed that on one short stretch of new concrete, fallen leaves > >>>>>>> would > >>>>>>> leave an image that lasted for months after the leaves had blown > >>>>>>> away. > >>>>>>> On adjacent surfaces, no images were created. And it seemed > >>>>>>> that only > >>>>>>> one type of leaf created these impressions. I was amazed to see > >>>>>>> that > >>>>>>> they endured for months, through rain, snow, salting and plowing. > >>>>>>> This > >>>>>>> year the process was repeated, and I decided to photograph some > >>>>>>> of > >>>>>>> these "autumn memories." > >>>>>>> Paul > >>>>>>> > >>>>>>> http://photo.net/photodb/folder?folder_id=878138 > >>>>>>> > >>>>>>> ============== > >>>>>>> Way cool. I like the two leaves the best (one up, one down). > >>>>>>> Easier > >>>>>>> to see > >>>>>>> what they are. Interesting. Never noticed that anywhere around > >>>>>>> here. > >>>>>>> > >>>>>>> Marnie aka Doe :-) > >>>>>>> > >>>>>>> --------------------------------------------- > >>>>>>> Warning: I am now filtering my email, so you may be censored. > >>>>>>> > >>>>>>> **************One site has it all. Your email accounts, your > >>>>>>> social > >>>>>>> networks, > >>>>>>> and the things you love. Try the new AOL.com > >>>>>>> today!(http://pr.atwola.com/promoclk/100000075x1212962939x1200825291/aol?redir=http://www.aol.com/ > >>>>>>> ?optin=new-dp > >>>>>>> %26icid=aolcom40vanity%26ncid=emlcntaolcom00000001) > >>>>>>> > >>>>>>> -- > >>>>>>> PDML Pentax-Discuss Mail List > >>>>>>> PDML@pdml.net > >>>>>>> http://pdml.net/mailman/listinfo/pdml_pdml.net > >>>>>>> to UNSUBSCRIBE from the PDML, please visit the link directly above > >>>>>>> and follow the directions. > >>>>>>> > >>>>>>> > >>>>>> -- > >>>>>> PDML Pentax-Discuss Mail List > >>>>>> PDML@pdml.net > >>>>>> http://pdml.net/mailman/listinfo/pdml_pdml.net > >>>>>> to UNSUBSCRIBE from the PDML, please visit the link directly > >>>>>> above and follow the directions. > >>>>>> > >>>>>> > >>>>>> > >>>>> ----------------------------------------- > >>>>> Email sent from www.virginmedia.com/email > >>>>> Virus-checked using McAfee(R) Software and scanned for spam > >>>>> > >>>>> > >>>>> -- > >>>>> PDML Pentax-Discuss Mail List > >>>>> PDML@pdml.net > >>>>> http://pdml.net/mailman/listinfo/pdml_pdml.net > >>>>> to UNSUBSCRIBE from the PDML, please visit the link directly above > >>>>> and follow the directions. > >>>>> > >>>>> > >>>>> > >>>>> > >>>> -- > >>>> You get further with a kind word and a gun, than with a kind word > >>>> alone. > >>>> --Al Capone. > >>>> > >>>> > >>>> -- > >>>> PDML Pentax-Discuss Mail List > >>>> PDML@pdml.net > >>>> http://pdml.net/mailman/listinfo/pdml_pdml.net > >>>> to UNSUBSCRIBE from the PDML, please visit the link directly above > >>>> and follow the directions. > >>>> > >>>> > >>> ----------------------------------------- > >>> Email sent from www.virginmedia.com/email > >>> Virus-checked using McAfee(R) Software and scanned for spam > >>> > >>> > >>> -- > >>> PDML Pentax-Discuss Mail List > >>> PDML@pdml.net > >>> http://pdml.net/mailman/listinfo/pdml_pdml.net > >>> to UNSUBSCRIBE from the PDML, please visit the link directly above > >>> and follow the directions. > >>> > >> -- > >> PDML Pentax-Discuss Mail List > >> PDML@pdml.net > >> http://pdml.net/mailman/listinfo/pdml_pdml.net > >> to UNSUBSCRIBE from the PDML, please visit the link directly above and > >> follow the directions. > >> > >> > > > > > > ----------------------------------------- > > Email sent from www.virginmedia.com/email > > Virus-checked using McAfee(R) Software and scanned for spam > > > > > > -- > > PDML Pentax-Discuss Mail List > > PDML@pdml.net > > http://pdml.net/mailman/listinfo/pdml_pdml.net > > to UNSUBSCRIBE from the PDML, please visit the link directly above and > > follow the directions. > > > > > > > > > -- > You get further with a kind word and a gun, than with a kind word alone. > --Al Capone. > > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. > ----------------------------------------- Email sent from www.virginmedia.com/email Virus-checked using McAfee(R) Software and scanned for spam -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
