The Idojiri Archaeological Musuem that is located at the foot of Yatsugatake Mountains in Nagano, Japan is well known for the excellent collections of Jomon Potteries of about 5, 000 years B.P. And till today the research has been continued to ascertain the view of the world of those days based on the study of Jomon Farming and Earthenware Iconography. At the Idojiri Archaeological Museum, we have been creating an image database of those potteries since 1996. And, at this time, we decided to publish a series of catalog for each ruins in the manner of Publishing On Demand toward the world. This catalog is the Vol.2 and contains 15 masterpieces of Jomon potteries excavated in Tounai ruins dwelling sites #9, 14, 16, 19, etc., and registered as National Important Cultural Properties. The commentaries on each potteries and excavation sites were written and compiled based on the report "Tounai, the center of prehistoric philosophy" that was published in 2011. As for the photos, we selected at least three photos for each pottery from the multi-view photos that were shot for creating the image database and laid out one photo by one page. The contents are as shown below.Excavation Reports:Discovery and Excavations of Tounai Ruins dwelling sites #9, 14, 16, 19, etc.Catalog: Steamer style deep bowl with snake pattern Liquor pot with snake pattern Both Ears Bowl God statue style deep bowlDiamond shaped deep bowl with frog patterns God statue style deep bowl with a frog pattern Deep bowl with compartment pattern of vertical stripes Five-stage deep bowl with dual eyes Clay figure with a snake on the head Large bowl with breast-shaped rim Deep bowl with dual eyes Perforated flanged earthenware with half-man half-frog patternDeep bowl with Mizuchi pattern Diamond shaped frog pattern style large bowlDeep bowl