Inheritence of jeans

complete the list
in ascending order some values have been truncated to the third decimal

:-1,1,0.857,1.167,13,13, ____, ______

all you fellows be good and give the reason
and make yourself worthy of the praise this season
if you fail to do so beware of the Ent
for he continues the legend of the serpent
now is not the time for apologies but sorry for this great gig
it was only day before that i was listening to the sound of war pigs
though this might seem phony and wont win you dough
atleast you wont suffer the plight of Lawrence rowe
The pitiable cricketer was allergic to grass
so shifted he to playing saxophone made of brass
pity that you werent born on the poets birthday
for that makes the answer get out of your way
Shine on you crazy You-Know-Who
FOr anyone who Answers this knows ___ ___