When the young animal was anxious to accept the offered food, it made an effort to get at the food quickly. Hence, the pushing forward of the head and the open mouth (always more or less opened when you nod to indicate “Yes”) and an expression of gladness. You will notice if you see anyone nod the head to indicate “Yes” that the lips are open rather than closed, and that there is always a smile or an indication of a smile to accompany it. In other words, the nod to mean “Yes” is only another way of saying “I shall be pleased.” Why Do We Count in Tens? When man even in his uncivilized state found it necessary to count, the only implements at hand were his fingers and toes, and as he had ten toes and ten fingers, he naturally began counting in tens, and has been doing so ever since. When we to-day count on our fingers we confine ourselves to our fingers leaving our toes stay in our shoes, where they naturally belong. But the first men who counted used both fingers and toes, and so he was able to count twenty before he had to begin over again, while little children to-day, when they count with their fingers, must begin where they started after they reach ten. What Does Man Mean by Counting Himself? The expression “counting himself” was originated by the first man who counted. Such a man would count all of his fingers and toes and the result would be twenty. Then, so that he would remember the number of times he had counted himself, he made a mark some place each time he reached twenty. The mark he made was a mere scratch in the dirt or on a hoe or something else. To make a scratch you merely, of course, score the surface of whatever you happen to be scratching on, and that is how it happened that the word “score” in our language to-day means as a term in counting, twenty. There has been a great effort made to change our system of counting in tens to one where you count in twelves. That would fit in very well with our system of measuring which is based on the foot of twelve inches, and of our calendar for recording the passage of time which has twelve months. There are many arguments in favor of this change, among the principal of which is the fact that it would make our problems of division much easier, for our ten can be evenly divided by but two of our single figures, two and five, whereas twelve can be evenly divided by four of our single figures, viz., two, three, four and six. It is believed that sooner or later the system of counting by twelve instead of ten will be adopted by the entire world for counting everything. As it is now we do part of our counting by one system and part of it by another. Where Did All the Names of People Originate? There is no scientific plan by which people get their names. There is not much except curious interest to be gleaned from the study of how people got their names.