of graphs with partitioned variables saved after using
        `import_meta_graph` with a non-empty `import_scope` argument.
    *   Fix bug in offline debugger which prevented viewing events.
    *   Added the `WorkerService.DeleteWorkerSession` method to the gRPC
        interface, to fix a memory leak. Ensure that your master and worker

Produced by Suzanne Lybarger, steve harris, Josephine
Paolucci and the Online Distributed Proofreading Team at
http://www.pgdp.net.






OPTICKS:

OR, A

TREATISE

OF THE

_Reflections_, _Refractions_,
_Inflections_ and _Colours_

OF

LIGHT.

_The_ FOURTH EDITION, _corrected_.

By Sir _ISAAC NEWTON_, Knt.

LONDON: