This is just the beginning! Our collection holds over 300 years of history, including rare newspapers, obituaries, marriage records, birth records, and so much more—most of which you won’t find anywhere else!
Where does all the blood come from and its types
Uncle Ray explains blood circulation and cell renewal in simple terms for sixth graders. He notes the same blood cycles through arteries and veins, with lymph carrying cells, and lungs refreshing blood with oxygen. Blood volumes vary by body weight, about seven pints for a 100 pound youth and 12 pints for a 180 pound adult, with major types C A B and AB. He also mentions a free leaflet on Flying Machine Pioneers and a Salt Salaries fact from Roman times, linking salt’s value to early wages.