Knitwear to die for

Fantastic, you have the lowdown on That Jumper ( Shortcuts , G2, 22 February). The Killing has taken over Saturday nights: it's not just the question of who did the horrific rape and murder; I want to know whose hands knitted that jumper? It has become an obsession every time Lund is in That Jumper; no chance of reading subtitles when trying to count how many stitches around the neck … not many … must have been knitted on telegraph poles. Amazing wool, obviously expensive as it's non-itchy and washes like a dream. Now G2 has come up trumps, even a photo and clear view of the neckline. Shame there's no knitting pattern available – maybe Alexandra Heminsley can get back to That Jumper's suppliers? Lesley Vicat Bromley, Kent • We shouldn't be surprised that ice-age inhabitants of a Somerset cave used skulls as drinking vessels ( Report , 17 February): it wasn't uncommon in Wales into recent times. Francis Jones, in his 1954 book The Holy Wells of Wales, recounted historical evidence for drinking from skulls at a number of Welsh holy wells. At Ffynon Deilo in Pembrokeshire a family were the hereditary keepers of a cranium handed to visitors to drink from, a practice that persisted into the 20th century. Dr Nigel Baker Shrewsbury, Shropshire • I regret that Dea Birkett had such a negative experience when visiting Tate Modern with her disabled daughter recently ( Comment , 21 February). Since Dea's visit we have made some changes and will continue to review our arrangements for access while we are building the extension to Tate Modern. We shall do our best to maintain the principle of equal access for all that is one of the cornerstones of the programme at Tate Modern. Nicholas Serota Director, Tate • David Garrard should be congratulated for carrying "an Edwardian guidebook in one hand and Dictionary of National Biography in the other" while surveying graves at Bunhill Fields ( Report , 22 February). The DNB is in 60 volumes. Dr Mary Ann Lund School of English, University of Leicester • Let's not have a spate of arboreal puns ( Letters , 22 February). Limit them to tree. Cyril Duff London