Saturday, July 19, 2014

Saturday, July 12, 2014

American Scientists Commemora­tive Stamp



Chemist: Melvin Calvin 
Botanist: Asa Gray 
Physicist: Maria Goeppert Mayer
Biochemist: Severo Ochoa

Thanks Ate Abigail. Still waiting for the Harry Potter Stamps.
Sana dumating na sya.. Nagliwaliw pa ata sa Hogwarts! ;)