We present an analytical approach to calculating the distribution of shortest paths lengths (also called intervertex distances, or geodesic paths) between nodes in unweighted undirected networks.

Lo sluggish Knight the victors happie pray: / So fortune friends the bold ….

Many genes with reproductive roles also have antibacterial and immune functions, which indicate that the threat of microbial attack on the sperm or egg may be a major influence on rapid evolution during reproduction.

[I] could not without much grief obſerve how frequently both gentlemen and ladies are at a loſs for queſtions, anſwers, replies, and rejoinders. However, my concern was much abated, when I found that theſe defects were not occaſioned by any want of materials, but becauſe thoſe materials were not in every hand. For inſtance, one lady can give an anſwer better than aſk a queſtion: one gentleman is happy at a reply; another excels in a rejoinder: one can revive a languiſhing converſation by a ſudden ſurpriſing ſentence; another is more dextrous in ſeconding; a third can fill the gap with laughing, or commending what has been ſaid. Thus freſh hints may be ſtarted, and the ball of the diſcourſe kept up.