Restatement in the Courts contains a glossary of terms defined by the courts as well as case citations to supplement the individual state annotation volumes.
"The primary purpose of this volume is to serve as a working tool to supplement the use of the Restatement by giving convenient access and reference to those numerous decisions of the courts which have cited the Restatement. It is not intended as a substitute for state annotations but as in some degree a supplement to them." Preface to Restatement In the Courts 5 (Am. Law Inst., 4th ed, Nov. 1939).
The Restatement in the Courts American Law Institute