Round clock with Roman numerals showing time 11:15

Clock 11:15

Round clock with Roman numerals showing time 11:15

Round clock with Roman numerals showing time 11:45

Clock 11:45

Round clock with Roman numerals showing time 11:45

Round clock with Roman numerals showing time 12:15

Clock 12:15

Round clock with Roman numerals showing time 12:15

Round clock with Roman numerals showing time 12:45

Clock 12:45

Round clock with Roman numerals showing time 12:45

"This is bounded by twelve irregular pentagons, and is a tetartohedral or quarter-faced for of the hexakis-octahedron." -The Encyclopedia Britannica 1910

Tetrahedral Pentagonal Dodecahedron

"This is bounded by twelve irregular pentagons, and is a tetartohedral or quarter-faced for of the hexakis-octahedron."…

Blood corpuscles. Labels: A, magnified about 400 diameters. The red corpuscles have arranged themselves in rouleaux; a, a, colorless corpuscles; B, red corpuscles more magnified and seen in focus; E, a red corpuscle slightly out of focus. Near the right-hand top corner is a red corpuscle seen in three-quarter face, and at C one seen edgewise. F,G,kH,I, white corpuscles highly magnified.

Blood Cells

Blood corpuscles. Labels: A, magnified about 400 diameters. The red corpuscles have arranged themselves…

A three-quarter view of the left ventricle after removal of its anterior parietes.

Left Ventricle of the Heart

A three-quarter view of the left ventricle after removal of its anterior parietes.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

1 Cent

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

2 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

3 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

4 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

5 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

6 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

7 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

8 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

9 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

10 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

11 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

12 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

13 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

14 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

15 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

16 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

17 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

18 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

19 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

20 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

21 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

22 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

23 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

24 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

25 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

26 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

27 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

28 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

29 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

30 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

31 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

32 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

33 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

34 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

35 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

36 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

37 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

38 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

39 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

40 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

41 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

42 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

43 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

44 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

45 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

46 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

47 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

48 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

49 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

50 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

51 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

52 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.

Groups of change with totals from 1 to 100 cents using the least amount of coins.

53 Cents

Groups of change with totals from 1 to 100 cents using the least amount of coins.