[49]

Between Mendoza & Cordilleras Traversia with some little Limestone &c peeping up –

P 276 partly good geolog account of the Paramillo range

Serpentine East of States

Hornblende slates

Pass of [Villa] Vicencio & Canota in Paramillo

In latter in Paramillo range horizontal beds over the strata.

Uspallata or Paramillo? secondary formation

There is road from Uspallata to S Juan. –

P 283 – Sandstone at Mendoza: Sulphur formation near S Juan – Bitumen pits South extreme if by Paramillo

P 285 Pumice quarry somewhere near Mendoza – (supposed Volcano)

Uspallata plains alluvial?

Tam [Balitos] first true porphyry

[49v]

May 20th [1835] started [Mistake for March]

Punta de los Vacas Breccia

Near el cerro de los penetrates castle hill

Calcareous & gypseous Tufia in valleys – Incas bridge: Saline matter – Water 96° [Muriatic]

Air bubbles aiming at Before this much Breccia Analysis given in Lieut. Brandes Travels

R de los Horcones very much gypsum between Breccia

Paramillo de los Cuevos some say a Volcano – 10.044 above [illeg] Cumbre [1871 in pencil, deleted] 11.920 ft. [1775 deleted in margin]

He crossed end of October, beginning of November & end of May. – From end of May to the end of October [Casucha] only to be confirmed  on foot.-

[Porphyry in pencil deleted] – [Casuche] Porphyry

Red snow & green

From S. Felipe. or Aconcagua then round to S. Juan by pass to Los Patos

345 Ponce & Provisions for crossing the Cordilleras: Alfajas or saddle bags: Passes 352. distances – [Barn]  - [illeg]