Show POPULAR SCIENCE I II la I raid n female codfish will foul fortyHve million egg during n tingle season Piscatorial authorities any that were It not for the work of the natural enemies of fish they would nil all the available space In the rwat river and oceans A norlman In a limestone quarry at Maquokela ta the other day found Imbvdiled I In the rock twentymo feet below tho surface a fly The fossil Is perfect Tho feeler and leg I and delicate deli-cate wins as will aa the body areas are-as complete no when the Insect alighted and duck In tho ooze away back In the upper Hlluilnn period ages ago Fir William Thomson tins ncently calculated lmt the average aim of a chemical atom to I not less I than six and not greater than sixty Mlllonths of n cubic Inch It has alno teen calculated that In a cubic Intli of air there are three hundred qulntllllons of atoms Hence the cubic Inch of air Is by no meant full and It Is I pniilble for them to mOle eighteen miles n minute nnd collide against each other ISOOOOO times a secund as has also been lately calculated calcu-lated that they 10 rite greatest heleht of any cloud yet measured Is Olson feet and the highest eloclt > Is I Hi mile nn hour for n cloud nt 18000 feet The most Important result re-sult thus far reached from theee measurements meas-urements IB I the fact that clouds are quite regularly distributed In three layer lay-er the mean summsr wets for Upsala being low clouds strutu cumulus cumulonimbus two thousand rlx thousind feet middle clouds strata cirrus cumuloclrrua twelve thousand fifteen thousand feet high clouds cirrus cirrostratus clrrucumulous twenty thousand tu twinl > sotn mil lon tl |