Under the Wikipedia entry for MetaldehydeWikipedia entry for Metaldehyde is listed a Melting Point of 246 C$\pu{246^\circ C}$ and a Boiling point of 110 C $\pu{110^\circ C}$ (actually, it says it sublimes).
How can a Boiling point be lower than the Melting Point? Even if 110 C$\pu{110^\circ C}$ is actually a sublimation temperature how can it then subsequently melt at a higher temperature of 246 C$\pu{246^\circ C}$?