Further GTR questions: Gaussian coordinate systems)?

Further GTR questions:
1. What features of events are ‘objective’, according to Einstein (and preserved in all
Gaussian coordinate systems)?
2. What is a ‘reference mollusc’?
3. How does a ‘material point’ get ‘characterized’ within a Gaussian coordinate
4. What is the restriction Einstein imposes on the clocks that we imagine located at
all the various points of a reference ‘mollusc’?
5. What condition must be met, if the Gaussian treatment of ‘distance’ between
points is to work? (See 98-99)
6. What tells us that our efforts to impose a Euclidean coordinate system on the
marble slab have gone awry?
7. What limit constrains a Newtonian cosmology based on infinite Euclidean space?
8. Why doesn’t Einstein like Seeliger’s proposed resolution for this problem?
9. Describe a surface that is finite but unbounded (has no limits).
10. How does the possibility of a 3-dimensional space like this allow for a more
satisfactory cosmology than that of a ‘quasi-Euclidean’ 3-dimensional space?