Baxter, Rodney2015-12-132015-12-130022-4715http://hdl.handle.net/1885/78685Elliott Lieb's ice-type models opened up the whole field of solvable models in statistical mechanics. Here we discuss the "commuting transfer matrix" T,Q equations for these models, writing them in a more explicit and transparent notation that we believeKeywords: ice-models; lattice models; six-vertex model; statistical mechanics200410.1023/B:JOSS.0000037215.07702.932015-12-11