This astonishing drawing by the American contemporary artist Ellen Gallagher and included in her Tate Modern retrospective in 2013, is part of a much larger body of work where drawings are two sided and encased in glass. These are then suspended on steel frames and mounted vertically onto small table tops. As objects they are a bit like the screen that separates a prisoner from his or her visitor or a bank cashier from a customer. Clearly referencing Duchamp’s Large Glass, they work as sculptural objects and we see them as such before examining the drawings in detail, in space, and three dimensionally. The collection is titled Morphia apparently in reference to morphine and the dreamlike state it induces. The subject in this case and in some of the others appears to be a head, there are lips and a chin. The head appears to be literally morphing into something else or from something else and from front to back, some other life form, perhaps alien or more probably an imagined marine creature, rare, secretive and yet undiscovered. The way that Ellen Gallagher works and reworks drawings, scratching and spilling wet and dry media to the point where the paper begins to shift, buckle and break, makes the subject if there ever was one, appear and disappear, be both something and nothing. The drawings become almost metaphysical in their complexity defying a straightforward interpretation asking a lot of the viewer. What impresses me more that anything about Ellen Gallagher’s work is the way that she stretches the parameters of drawing, taking it into new territory. Her drawings become other things, scratched into film and projected, stuck onto canvas and hung, assembled monumentally into collections of 60 and more, or made sculptural as they are here sandwiched between glass. The official index note for this work is elaborate; Morphia, Front-5, 2008-2012 Ink, Pencil, watercolour, varnish, oil, gesso, gouache egg tempera, polymer medium and cut paper on paper. Ten parts each presented in a steel frame on a steel table, (51.6 x 42.4 cm). Gallagher rigorously explores the potential of her materials in the same way that she interrogates her subject. The two become one, the object, always dynamic, emerges from the experiment.