L7BSYs ( continued) Like calcius, Calciue metabolism in the sea leads direchly to the deposition of calcina. in this place. Strontina will sove along ‘So we should look, I think, ( You correc me Yr. Kulp if I make mistakes in this) but it would se te me that the type of ocean samples we ceed are the following: Ze need the top and the rottom, the freshly fallen sediaents, to see whether strontiua ig in the seat shells that are just formed. Se need the dissolved materials in water itself, we need perhaps articulate matter which is not yet settled and I should think these three thingsare the iaportant things to secasure. P iERe Bell don't you need perhaps the seawater and saybe especially for fresh water fish bones, Or. Libty? zz LIBBY: Oh yes, of course - I was sort of putting that into the biosphere. This is absolutely necessary. tion taking th biosphere and taking the sea as a principal residence of _ Living material we, of course, are greatly interested is the strontiua content of life in the sea - rost of which of course is plankton. Flankton that can be saapledy it however will perhaps be easier and cleverer to let the eat the plankton and then wgeasure the fish, so you get imnediately to the problea of measuring firkes snd you g famediately to the probles of the lifetine of the fishes . yw measure. 1 think I learned a little from wr. Ravell 74