3 commits

Author	SHA1	Message	Date
crc	aa24468dc4	work on the book ... FossilOrigin-Name: d894d78b9b3b6b93df3bfe4f6976e6a446a71c4e1df92af907defecfaacdd1c0	2019-03-18 14:52:49 +00:00
crc	82ac0e1227	more work on the book ... FossilOrigin-Name: b4d7f3d85ae7c64c9977d43675afc61347635edf0b3f6d4a7f12e38c0ccc151e	2019-03-15 14:23:47 +00:00
crc	d518e70f59	stubs for refactored book ... FossilOrigin-Name: d16df75902b0b5699961666a00ede23ec0cbb287cc292b605d747cc69011f898	2019-03-14 20:40:09 +00:00