Show AND at VERIES OBIES why a pin floats inquisitor writes 1 I see that you purpose answering quest questions ne and as a poser was propounded to me by my sons aged seven and eleven years respectively I 1 submit it to you why does a common pin when perfectly dry float on water are there some chemical properties which hold it up the property of matter or force called cohesion tends to hold together the molecules of water and most other substances in nature hence these molecules resist displacement and this resistance is sufficient to light articles even of metal meta lupon upon ata surface of water provided such articles have the proper shape and a highly polished surface and are perfectly dry when laid upon the water if a pin in have a rough surface or be I 1 irregular rr agul alar in sha shape e or wet it will not float irregularity irregularity I 1 of shape will destroy the equilibrium necessary to a float floa if ing position sit n and the capillary attraction consequent bent upon a rough or wet surface will attract the water to all parts of that surface and thus make the pin sink space admits of only a brief anti and incomplete explanation of this matter here but in almost any school book or zer other elementary work on natural philosophy it is fully explained back numbers A subscriber at springdale ringdale Sp evinces his appreciation of the WEEKLY in the following manner 1 I write in consequence of a missing number of the no I 1 came all right but no 2 1 I have never seen now what am I 1 to do in this case I 1 am well pleased with the change that has been made in the WEEKLY and wish to preserve all the numbers in order to get them bound in a book for it bids fair to be the best magazine zi zine that has ever been printed how am I 1 to obtain the missing number please answer we can furnish all subscribers with back numbers of the deseret WEEKLY if they thley wish to have them rock salt B L thomas of malad asks where rock salt can be had and the p price fee per ton almost any wholesale grocer in this city or ogden will furnish it the price is about 10 per ton loose or 11 sacked J W tn onell rz is a leading salt man ma n 0 of f this city and will fill orders at these figures A car load would cost less |