Dean slept fitfully, once he managed to count sufficient sheep to do so, with dreams and mind games interchanging so rapidly as to blur the borders more than a map of Africa.
This writer seems to differ a good deal from Blith about the advantage of interchanging tillage and pasture.
Two relations R and R' are said to be ordinally similar, if a one-one relation holds between the members of the two fields of R and R', such that if x and y are any two members of the field of R, such that x has the relation R to y, and if x' and y are the correlates in the field of R' of x and y, then in all such cases x has the relation R' to y', and conversely, interchanging the dashes on the letters, i.e.
From every proposition in this algebra a reciprocal one may be deduced by interchanging + and X, and also the symbols o and i.
(7) Interchanging these values =m log r, 4, = mO, 4,+4,i =m log rei e (8) gives a state of vortex motion, circulating round Oz, called a straight or columnar vortex.
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