: Gwasanaethau Casgliadau

Happy Day of Archaeology everyone!

Today, the 28^th July 2017, is the annual online event in which archaeologists from across the country blog about archaeology. The idea is to showcase the diversity of the subject and highlight what individuals are doing on and around this day.

This year we’ve badgered people from across the museum to contribute posts on who they are and how they engage with archaeology through their various research and projects and on a daily basis.

We have been amazed by the positive response, not just from within History and Archaeology but from a whole range of disciplines. The topic of posts thus ranges from prehistoric Cardiff to botany to archaeological curation to snails! It really shows how broad and varied archaeology truly is, beyond the traditional view of woolly jumpers, beards, and whips (though it has been known!)

These posts are all hosted on the external site: www.dayofarchaeology.com and links to blogs from our staff are listed below and will be added to throughout the day.

We hope you enjoy!

Adam Gwilt – An Archaeological Curator’s Day / Diwrnod ym mywyd Curadur Archaeolegol

Dr. Rhianydd Biebrach – The Saving Treasures: Telling Stories Project

Dr. Ben Rowson – Snails at Snail Cave, and elsewhere in Wales

Jonathan Howells - From Housing to History and Archaeology

Kristine Chapman - Rare Books from the National Museum Wales Library

Sarah Parsons - Photographing Archaeology

Dr. Heather Pardoe – Harold Augustus Hyde’s Contribution to Welsh Archaeology

Dr. Elizabeth Walker – Contemplating and communicating the Palaeolithic landscapes of Wales

Sian Iles – Marvellous medieval tiles-public engagement at Amgueddfa Cymru-National Museum Wales

Matt Knight – A Day in the Life of an Archaeology Intern / Diwrnod ym mywyd Archaeolegydd preswyl

Wel, efallai ddim yn y byd i gyd, ond yn sicr mae gyda’r gwiriona yn Amgueddfa Cymru!

Pan fydd ffrindiau’n holi “Sut mae’r swydd newydd?” fydd dweud fy mod i’n Gynorthwy-ydd Metadata Casgliadau Ar-lein ddim yn rhyw lawer o help.

Mae hon yn swydd newydd sbon yn yr Amgueddfa a grëwyd diolch i nawdd y People’s Postcode Lottery.

“Ym... enw crand am fewnbynnu data?”. Dyw hynny’n fawr o help chwaith. Mae’n wir taw eistedd wrth sgrin cyfrifiadur fydda i’r rhan fwyaf o’r amser, gyda thaenlenni a basau data yn troi fy llygaid i’n sgwâr wrth i fi symud gwybodaeth o un blwch i’r llall. Ond bob hyn a hyn bydda i’n cael fy atgoffa o werth gwirioneddol y gwaith.

Mae’r hyn sydd i fi yn gasgliad o rifau’n cambyhafio ac yn gwrthod ffitio’n y golofn gywir, mewn gwirionedd yn cynrychioli gwrthrychau a delweddau o’n casgliadau amrywiol.

Bob hyn a hyn felly, bydd llun bydenwog yn ymddangos, fel Glaw, Auvers gan Van Gough

Neu gall fod yn hen ffotograff o drigolion y teras o dai gweithwyr haearn sydd bellach yn Sain Ffagan Amgeuddfa Werin Cymru. Os edrychwn ni’n ofalus, mae’n amlwg bod rhai o’r plant ar bigau’r drain, prin yn medru aros yn llonydd i’r camera!

Mae gwrthrychau Amgueddfa Cymru i gyd wedi’u catalogio ar fas data er mwyn i ni gadw golwg ar bob eitem yn y casgliad a ble caiff ei gadw.

Fy ngwaith i yw paru’r rhifau yn y bas data gyda’r delweddau a’r wybodaeth amdanynt (dyna’r Metadata yn y teitl) er mwyn i chi gael eu gweld ar Casgliadau Ar-lein (fydd ar gael yn y fuan iawn).

Hwn fydd y cyfle cyntaf i chi gael chwilio’r bas data eich hun. Byddwch chi’n gweld yr union wybodaeth â’r curaduron pan fydda’n nhw’n chwilio drwy ein gwrthrychau. Os ydych chi am wybod faint yn union o feiciau modur sy’n y casgliadau, cyn hir gallwch chi weld dros eich hun!

Mae’n waith mawr tacluso’r holl wybodaeth cyn ei gyflwyno i’r cyhoedd, ond rydyn ni wrthi’n brysur... felly nol at y taenlenni a fi!

 The numbers of specimens in geological collections in the UK alone reach into the tens of millions. These collections are important for research, education and also commercially. Museums hold collections, but so do individuals and companies; exploration companies keep rock core samples which can be as valuable as £1,000 per meter.

There is now sufficient evidence to dispel the myth that geological collections are inherently stable and require fewer resources to preserve them than other areas of museum collections. In fact, a proportion of geological collections demand a level of attention and maintenance comparable with archaeological metal collections. This includes similar environmental and pollution-related considerations.

About 10% of known mineral species are sensitive to changes in temperature or humidity, or may react with air pollutants. One such mineral is pyrite – common in geological collections and one that is particularly troublesome. However, despite centuries of research on pyrite decay there is a dearth of knowledge in subjects that would help museums improve the effectiveness of their care of geological collections. This includes the categorisation of damage to specimens, methodologies for objective routine condition assessment, the definition of an adequate storage environment, and successful conservation treatments.

Currently available methodologies are not suitable for routine collection monitoring, results are not necessarily replicable, and, in the absence of guidance on suitable storage conditions, triggers and the suitability of conservation actions are difficult to determine. We need a more robust approach to the delivery of preventive conservation of geological collections.

We have now teamed up with the EPSRC Centre for Doctoral Training in Science and Engineering in Arts, Heritage and Archaeology (SEAHA) at University College London, University of Oxford and University of Brighton to investigate these aspects of preservation of geological collections. A four-year studentship has been advertised which will be based at Oxford University but spend a considerable amount of time working at National Museum Cardiff. If you are interested in this subject, and have a background in, ideally, geology, chemistry or engineering, please do get in touch.

Find out more about Care of Collections at Amgueddfa Cymru - National Museum Wales here and follow us on Twitter.

Museum displays get dusty, inevitably, but this dust won’t be there for long. Armed with a paintbrush and a portable vacuum cleaner the Preventive Conservation team is ready to move through the museum galleries, cleaning as we go.

Once upon a time, gallery maintenance was an activity hidden behind closed doors, only undertaken when there were no visitors in the building. But things are changing, and what we once did behind closed doors now happens whilst the museum is open. Everyone can see what happens behind the scenes and Preventative Conservation becomes a temporary display itself. By working in front of an audience we can explain what we do and why we do it, after all it may look strange carefully dusting a painting. If it looks as if we smudge the paint on a painting: we don't - we are actually cleaning finger prints off the protective glass.

So why do we have to do this in the first place? Firstly dust doesn’t look very good, especially when you notice the frame and even the protective glass has dust on it – things like that would give a museum an air of neglect. But this is not the only reason; dust also has the potential to damage our museum’s collections. Dust can become sticky and attracts water (hygroscopic), which can cause mould. Dust can also attract pests, leaving museum collections vulnerable to damage from insects. By cleaning museum collections we can prevent dust build up, reducing risks to collections.

Museum collections will always need to be looked after, and removing dust is one simple way we can prevent multiple forms of damage to our heritage. Keep a look out for us in the museum galleries brushing a sculpture, we are always happy to talk about what we are doing!

P.S. Look out for the other activities we are doing in the galleries, we may be repackaging museum collections to reduce the risk of pest damage, checking pest traps, or cleaning the Natural History and Geology displays. There is always Preventative Conservation to do in the museum!

This guest blog was written by our volunteer Will Tregaskes who is giving a talk on this subject at the 'Conservation Matters in Wales' conference on Thursday 8th June 2017 at Glynn Vivian Art Gallery, Swansea.

Find out more about Care of Collections at Amgueddfa Cymru - National Museum Wales here and follow us on Twitter.

We wrote of dust before, for example here and here. The museum is like your home, dust gathers everywhere. Unlike my own house though, the museum is very, very big. The museum's dust problems are correspondingly large.

Last year a student from Cardiff University, Stefan Jarvis, undertook a dust monitoring project in the museum. Stefan was studying for an MSc in Care of Collections, which is a subject very close to my heart. Stefan is also the author of one of our guest blogs. Stefan placed a large number of dust traps around the museum building: in stores and exhibition galleries. You may be familiar with some of the galleries he investigated: our Geology gallery with the dinosaurs, the current “Wriggle” exhibition on worms, the Whale gallery and the Organ gallery where we display some of the largest paintings in the museum.

Collecting dust is really easy: prepare a sampler. Leave it out in a suitable location. Wait. For. Four. Weeks.

Once Stefan had gathered some dust he analysed the samples: he identified each particle under the microscope and determined where they all came from. This is where things started getting really interesting. For while undertaking scientific investigations are often laborious and involves much routine work, the results are often extremely illuminating.

This is what Stefan found:

• More dust accumulates in areas of high traffic (i.e., many people walking past).
• More dust accumulates at low levels (the closer you get to floor level the more dust you will find).
• Dust composition differs between spaces. For example, most dust fibres in a library store are paper fibres, while most fibres in public galleries are textile fibres, hair and skin.
• We found biscuit crumbs on the dust samplers in two galleries. This indicates that food was being consumed in these galleries.

Now, we love having people in the museum. In fact we undertake some of our collection care work during museum opening hours so that you can see what we are up to a lot of the time. Therefore, we are happy to accept that visitors always leave us a little reminder that they have been, in the form of a few dust particles. You can feel a ‘but’ coming on: but we do not encourage the eating of biscuits (or any other foodstuffs) in our galleries. Eating food in our galleries bears the risk of small amounts of food ending up on the floor, in displays, behind cupboards - or, as part of dust. Food encourages the spread of pest insects which, once they have eaten all the available biscuit crumbs, then start munching our collections. This is not something we endorse, because we try to preserve our collections for you to enjoy.

This means you can actually help us preserve the collections - by not eating in the galleries. We will be doing more work on this in the near future, by encouraging visitors to consume food in our fabulous restaurant or cosy cafe, not in galleries. In the meantime, we really do appreciate your cooperation and understanding for our no-food-in-galleries policy.

Find out more about Care of Collections at Amgueddfa Cymru - National Museum Wales here.