Log #1: growing out of the side of the log.
They look like the Common Split Gill mushrooms in my guide (Audubon). But the write-up says their range is "Maine to Tennessee, west to North Dakota." Which is contradicted two sentences further on, with "The Common Split Gill is found throughout the world..." Confusing.
The biggest is about an inch across.
The underside, showing the split gills.
On log # 2: growing at the cut end.
Oddly-shaped mushrooms, pinched at the centre. A couple of similar ones in the guide are called Saddle-Shaped.
Slime or mushroom?
Looking like blobs of Silly Putty oozing out of the pores.
Many of the other pores were outlined in this white stuff:
My guide doesn't acknowledge the existence of anything quite this weird.