the first lessons in numbers an illustrated table book designed for elementary instruction apothecaries weight lesson lxxxsee manual sec i exercise vii 20 grains gr make 1 scruple sc or 3 3 scruples make 1 dram dr or 3 8 drams make 1 ounce oz or 3 12 ounces make 1 pound lb or lb 20 grs 60 grs 480 gra 5760 86 long measure m m long measure teaoheearthur can you tell me how far a mile is aethurif i place 12 sticks an inch long in a rowthe row will be afoot long if i make a measure 3 times as long as the row ofsticks it will be a yard measure like the 2ajg91a.jpg from 《make》印度科学教育与研究所 加尔各答毕业证书修改成绩单806013792微信q办理国外大学真实留信认证（学士学位认证）留服教育部认证un View Photo