While the notion of telling the age of trees by counting rings is an old one, the method has recently come into much prominence through application to the old bristlecone pines in the south-west. Some have claimed, for instance, that the results would serve to settle problems in chronology, and to provide an independent calibration for attempts to find ages from carbon 14. While the method certainly has much promise, the author shows that, at the present, there are very pertinent questions which have not been answered. Thus it would be premature, at the least, to say that results supposed to be obtained from tree rings have to be accepted, particularly if they should conflict with Biblical evidence.