Chapitre IV — OBSERVATIONS ............. 25 Observation Le. 00e

ODSeT VAIO ELITE 28

OPSCEVATIONEIIIEEP RE 39

Observation IV... 32

Observation VE... 59

ODErvAUONn AVIS 2. 35

Observation VII .......... 36

Observation VIII ......... 37

Observationt Ex 5... 38

ODSELVALIONE NP RRR ee 38

Observation XI .......... 39

Observation XII .......... 89

Observation XIII ........ 40

Observation XIV ......... 41

Observation XV .......... 41

Observation XVI ......... 42

Observation XVII ..... 0 42

Observat. de Rothman ...... 44

Observation XVIII ...... 43