Table 2 Diameters and weights of egg in the two natural nests from sandy beach

Egg number	Egg diameter (±1.0)mm				Egg weight(±0.1) g		Sempling date
	High		Low
	First	Second	First	Second	First	Second	First	Second
1	21.2	21.6	20.6	19.4	5.2	4.7	14 Jun. 2008	6 Jul. 2008
2	21.3	21.6	20.7	19.4	5.3	4.7
3	21.3	21.5	20.5	19.3	5.3	4.5
4	21.2	21.6	20.7	19.5	5.3	4.6
5	21.3	21.5	20.5	19.3	5.3	4.6
6	21.1	21.5	20.6	19.3	5.2	4.6
7	21.1	21.6	20.5	19.5	5.3	4.7
8	21.3	21.6	20.6	19.4	5.3	4.7
9	21.2	21.6	20.6	19.4	5.2	4.6
10	21.2	21.6	20.7	19.4	5.2	4.5
11	21.1	21.6	20.5	19.4	5.2	4.7
12	21.2	21.5	20.5	19.3	5.3	4.7
13	21.1	21.3	20.6	19.5	5.2	4.7
14		21.5		19.3		4.6
15		21.6		19.4		4.7
16		21.6		19.4		4.7
Average	21.2	21.6	20.6	19.4	5.25	4.64
Total average	1st :	20.9	2nd :	20.5	4.95