What beautiful dogs... you guys sure were lucky to have them.
Sarah, I had the same thing with several of the quiters. I am thinking it has something to do with the shipping. Even worse if you have a crappy postal worker having a crappy day... I had some eggs that the veins weren't spider formed, but up and down formed, embryo started and stopped by lock down. At lock down, because I am such a newb at this, I left the ones that I was sure were quits, just because I wasn't sure. I had 3 hatch from that side out of the 13 I had marked. But on that side, the same thing you are discribing, clear air cell, chick development,but the bottom 3rd of the egg was also clear. I am wondering if some of those were just too scrambled, but I didn't catch it? Hm.. don't know. I am going to try it again. After all, I did get 17 chicks out of the 36 I put in lock down, and only 23 of those I was sure of.