The Works of Visman and Ingamells Relevant to the Theory of Sampling

The objective of this chapter is not to compare or debate the works of Visman and Ingamells with Gy’s work, as there is no doubt such a document would be futile because Gy’s achievement is well established as a flawless Theory of Sampling. Rather, it is important to emphasize the work that may be beneficial and provide relevant, harmonious additions in some areas, and indeed there are many possibilities. Such additions may enhance our capabilities to predict sampling difficulties by using a stronger strategy and to design better sampling experiments that would allow us to further understand the heterogeneity of minor and trace constituents.