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Edge-on spiral galaxies offer a unique perspective on the vertical structureof spiral disks, both stars and the iconic dark dustlanes. The thickness ofthese dustlanes can now be resolved for the first time with Herschel infar-infrared and sub-mm emission. We present NHEMESES, an ongoing project thattargets 12 edge-on spiral galaxies with the PACS and SPIRE instruments onHerschel. These vertically resolved observations of edge-on spirals will impacton several current topics.  First and foremost, these Herschel observations will settle whether or notthere is a phase change in the vertical structure of the ISM with disk mass.Previously, a dramatic change in dustlane morphology was observed as in massivedisks the dust collapses into a thin lane. If this is the case, the verticalbalance between turbulence and gravity dictates the ISM structure andconsequently star-formation and related phenomena (spiral arms, bars etc.). Wespecifically target lower mass nearby edge-ons to complement existing Herschelobservations of high-mass edge-on spirals (the HEROES project).  Secondly, the combined data-set, together with existing Spitzer observations,will drive a new generation of spiral disk Spectral Energy Distribution models.These model how dust reprocesses starlight to thermal emission but the dustgeometry remains the critical unknown.  And thirdly, the observations will provide an accurate and unbiased census ofthe cold dusty structures occasionally seen extending out of the plane of thedisk, when backlit by the stellar disk. To illustrate the NHEMESES project, wepresent early results on NGC 4244 and NGC 891, two well studies examples of alow and high-mass edge-on spiral.

New HErschel Multi-wavelength Extragalactic Survey of Edge-on Spirals (NHEMESES)