Anony Mous : The first two articles seem to suggest that phrenology is true ...
The second article is talking about the shape of the brain, not the shape of the skull which is what phrenology measures. The pertinent section in the article is discussing that those who possess particular qualities of mind are naturally drawn to God. It is not talking about measuring the skull or the brain in any way. It (Watchtower Reprints, 03/15/1913, p.5201) goes on to say :
Man was created in the image of God. The fall has greatly marred that image, but no one is totally depraved. All have unbalanced brains, some in one direction, others in another. When the truth comes in contact with those whose organs of veneration or conscientiousness are less impaired, they are drawn to investigate it, with the hope of being drawn close to God. Those whose organs of veneration and conscientiousness are more impaired, do not have this experience, and are not drawn unto God, if haply they may find him.
I really don't think there is any endorsement of phrenology here. In fact, in the first article, which does talk about phrenology, it specifically says "without claiming that any has learned to read accurately from the shape of the human skull the various traits of character therein represented", which settles any doubt a reader might have that such a claim is being made.