A statistical analysis of the areas of the sky covered by various types of clusters of galaxies located at various distances is made, using the data listed in Volume 1 of the Catalogue of Galaxies and Clusters of Galaxies by F. Zwicky, E. Herzog, and P. Wild. Taking into account the effects of interstellar and intergalactic absorption, as well as systematic falsifying effects inherent in our observations, the results obtained confirm the assumption that the distribution of clusters of galaxies is uniform within a space whose indicative radius is of the order of 10 parsecs. The diameters as defined in the Catalogue of the largest compact, medium compact, and open clusters of galaxies at all distances are the same and of the order of 7.8 X 106 parsecs. From this it follows that the average diameters of the so-called "cluster cells" are about 41 million parsecs, or equal to the diameters of what some authors have called secondorder clustering. The concept of second-order clustering, in our opinion, cannot therefore be assigned any physical meaning.