THE FOLLOWING COMMENTS ARE TAKEN FROM THE PI N COMPILATION OF R.L. KELLY. THEY ARE THAT COMPILATION'S COMPLETE SET OF COMMENTS FOR PAPERS RELATED TO THE SAME EXPERIMENT (DESIGNATED GRIGOREV60) AS THE CURRENT PAPER. (THE IDENTIFIER PRECEDING THE REFERENCE AND COMMENT FOR EACH PAPER IS FOR CROSS-REFERENCING WITHIN THESE COMMENTS ONLY AND DOES NOT NECESSARILY AGREE WITH THE SHORT CODE USED ELSEWHERE IN THE PRESENT COMPILATION.) /// GRIGOREV57 [E. L. GRIGORIEV,SOVIET PHYSICS JETP 4,10(1957).] -- PI+ P DCS AT 427 MEV/C FROM 427 ELASTIC EVENTS IN EMULSION AT INP. DATA GIVEN GRAPHICALLY. /// MUKHIN56 [A. I. MUKHIN,1ST IC ON HE ACCELERATORS,GENEVA,V2,P204,1956] -- CONFERENCE PAPER ON GRIGOREV57 AND MUKHIN57(SEE MUKHIN57 EXPT). A TABLE OF THE GRIGOREV57 DATA IS GIVEN. /// MITIN57 [N. A. MITIN,SOVIET PHYSICS JETP 5,378(1957).] -- PI+ P DCS AT 480 MEV/C FROM 218 ELASTIC EVENTS IN EMULSION AT JINR. /// GRIGOREV60 [E. L. GRIGORIEV,SOVIET PHYSICS JETP 10,1123(1960).] -- PI+ P DCS AT 511 MEV/C FROM 167 ELASTIC EVENTS IN EMULSION AT JINR. /// GRIGOR60P [E. L. GRIGORIEV,SOVIET PHYSICS JETP 10,295(1960).] -- PI+ P POL AT 424 MEV/C AND THETA=140 DEG FROM 545 ELASTIC RESCATTERING EVENTS AT INP. PIONS WERE SCATTERED IN LIQUID HYDROGEN TARGET AND RECOIL PROTONS SCATTERED IN EMULSION. /// COMMENTS FROM LOVELACE71 COMPILATION OF THESE DATA -- LOVELACE71 PUTS THE DCS DATA IN A SPECIAL SECTION RESERVED FOR EXPERIMENTS THAT DISAGREE SERIOUSLY WITH OTHERS. /// COMMENTS ON MODIFICATIONS TO LOVELACE71 COMPILATION BY KELLY -- THE RENORMALIZATION CORRECTIONS GIVEN WITH THE LOVELACE71 VERSION OF THE DCS DATA (WHICH WAS APPARENTLY TAKEN FROM THE ORIGINAL RUSSIAN JOURNALS) ARE INCORRECT (WRONG SIGN AT ALL 3 MOMENTA,WRONG MAGNITUDE AT ONE). THE FORWARD POINTS DISAGREE WITH THE PUBLISHED VALUES EVEN WHEN THIS IS CORRECTED.