Show good home lessons from an incubator short course in In well worth cost of eggs prepared by the united department 0 of f agriculture culture now durl during dg the season when incubators are in operation it may happen lap that tile eggs purchased or saved for incubation to do not completely nil hll the tray for one hatch this joffere an excellent opportunity for an interesting and highly educational lesson in ili natural history says one of the workers in tile the united states department of agriculture if 11 there la Is space for from 20 to 24 more eggs get them from any source where fertility Is probable anil and mark thera them for identify catlon cation operate the incubator a as usual but instead of incubating all the experimental egg for the full 21 day period take one out for examination each tiny day watch the dally developments within the shell ond and observe tile the success lve stages of the growth of the chick from the germinal disk ol 01 0 the fresh laid nil and apparently life less eggs to the marvelously marielou sly developed mechanism able to peck its phell ant anil to emerge a living bird it Is possible to get something of an idea ot of what Is happening by candling a single it egg lay day after day but a still mine instructive method Is to first candle cardue an egg and then break it carefully into a 8 saucer au er T alila 1118 course C our 8 e of 21 simple lessons in embryology Is well worth wort 11 tile the cost bost of two dozen ego eggs the whole family Is likely to find it interesting and instructive |