I constructed four miniature houses of worship-a Mohammedan mosque, a Hindu temple, a Jewish synagogue, a Christian cathedral-and placed them in a row. I then marked 15 ants with red paint and turned them loose. They made several trips to and fro, glancing in at the places of worship, but not entering. I then turned loose 15 more painted blue; they acted just as the red ones had done. I now gilded 15 and turned them loose. No change in the result; the 45 traveled back and forth in a hurry persistently and continuously visiting each fane, but never entering. This satisfied me that these ants...

I constructed four miniature houses of worship-a Mohammedan mosque,/a Hindu temple, a Jewish synagogue, a Christian cathedral-and placed them in a row. I then marked 15 ants with red paint and turned them loose. They made several trips to and fro, glancing in at the places of worship, but not entering. I then turned loose 15 more painted blue; they acted just as the red ones had done. I now gilded 15 and turned them loose. No change in the result; the 45 traveled back and forth in a hurry persistently and continuously visiting each fane, but never entering. This satisfied me that these ants...