**Ars Combinatoria****Volume LXXVI, July, 2005**

**C.F.X. de Mendonca, E.F. Xavier, J. Stolfi, L. Faria and C.M.H. de Figueiredo**, “The non planar vertex deletion of Cn x Cm”**Jill R. Faudree and Ronald J. Gould**, “A Note on Neighborhood Unions and Independent Cycles”**Michael D. Hirschhorn and James A. Sellers**, “Further results for partitions into four squares of equal parity”**Jian-Liang Wu, Ping Wang and Anthony Hilton**, “Two sufficient conditions for a graph to be type 1”**Thomas Bier and Peter @ Suresh Padmanabhan**, “Some Formulas for Generalized Stirling Numbers”**Candida Nunes da Silva and Ricardo Dahab**, “Tutte’s 3-flow Conjecture and Matchings in Bipartite Graphs”**Andrea Vietri**, “Chromatic number of regular walls”**Shannon L. Fitzpatrick and Gary MacGillivray**, “Non 3-Choosable Bipartite Graphs and The Fano Plane”**D.J. Ashe, C.A. Rodger and H.L. Fu**, “All 2-Regular Leaves of Partial 6-cycle Systems”**A.K. Agarwal**, “New Classes of Combinatorial Identities”**M.A. Ollis and P. Spiga**, “Every abelian group of odd order has a narcissistic terrace”**Teresa W. Haynes, Michael A. Henning and Peter J. Slater**, “Trees with Equal Domination and Paired-domination Numbers”**Hiroshi Era, Kenjiro Ogawa and Morimasa Tsuchiya**, “Note on transformation of posets with the same semi bound graphs”**Emanuele Munarini**, “Enumeration of order ideals of a garland”**Ewa M. Kubicka**, “Polynomial Algorithm for Finding Chromatic Sum for Unicyclic and Outerplanar Graphs”**M.M. Cropper and Peter D. Johnson, Jr.**, “Problems on Hall t-chromaticity”**Z. Bogdanowicz**, “Hamiltonian Circuits in Sparse Circulant Digraphs”**Hikoe Enomoto, Jun Fujisawa and Katsuhiro Ota**, “A sk type condition for heavy cycles in weighted graphs”**Tao-Ming Wang**, “On line graphs which are weakly maximal clique irreducible”**Lane Clark**, “Comment on “Properly Coloured Hamiltonian Paths in Edge-coloured Complete Graphs without Monochromatic Triangles””**Maged Z. Youssef**, “Pseudograceful Labelings of Cycles”**Miranca Fischermann, Dieter Rautenbach and Lutz Volkmann**, “Extremal Trees with Respect to Dominance Order”**Nasrin Soltankhah and E.S. Mahmoodian**, “On defining numbers of k-chromatic k-regular graphs”**Arie Bialostocki and Rasheed Sabar**, “On constrained 2-Partitions of monochromatic sets and generalizations in the sense of Erdos-Ginzburg-Ziv”**Arnold Knopfmacher and Neville Robbins**, “Compositions with parts constrained by the leading summand”**G. Sethuraman and A. Elumalai**, “Packing of any set of graphs into a graceful/harmonious/elegant graphs”**Ligong Wang, Xueliang Li and C. Hoede**, “Two Classes of Integral Regular Graphs”**Sergey Kitaev and Toufik Mansour**, “On multi-avoidance of generalized patterns”