I will bring rock chemical data, and estimates of primary volatile contents of magma and mantle. 2) At the workshop, I would like to see geophysical data about crustal structure as it relates to porosity and density of rocks. Also geophysical data that is related to mantle H2O contents: where is most of the H2O coming from? Sulfide chimney chemical data, so it can be compared with basalt data. 3) Topics that are ripe for integration at Lau ISS? Maybe using Pb isotopes in basalts and chimneys to describe the size of hydrothermal cells. Possibly comparing model vesiculation depths of magmas with vertical crustal structure determined geophysically. 4) I look forward to speaking with Robert Dunn, Fernando Martinez, Meg Tivey