WOODWORTH: GEOLOGICAL EXPEDITION TO BRAZIL AND CHILE. 47 
amarello com seizos que ahi conteim uma delgada camada de plantas fosseis. 
A seccio e’ a sequinte: 
Arenito amarello com delgado leito de carvio . ; ; . 60. metros. 
Argilla negra com abundantes restos de insectos . ; io OO 
Schisto cinzento com rica flora de Glossopteris . , ae 
Schisto cinzento um tanto ardoriano contendo Lingula, 
Discina, escamas de peixes, azas de insectos, Chonetes em abun- 
dancia, e outros brachiopodos . ‘ . 40. 
Camada argillosa com seixos e boulders até o rio aaa Atria 7 G0: 
.Parece-me nfo haver duvida de que o conglomerate e’ Carbonifero 
medio ao Permiano. Os insectos apparecem nfo sO nas camadas marinhas 
como as que se acham logo abaixo do carvdo. 
Esta vista modificada podré figurar em seu relatorio. 
Abragos, 0 amigo admirador, 
Euzebio Paulo de Oliveira. 
(Translation by J. B. Woodworth). 
Ponta Grossa, 13th December, 1911. 
My dear Mr. Woodworth, 
Greeting: 
A I am here prosecuting my labors and as it may 
be that your observations on Brazil have not yet been published I avail myself of 
this opportunity to give you some data upon the age of the glacial conglomerates. 
The first time that I found beds with marine fossils in the glacial conglomerates was 
when I was executing the boring at Passinho 12 kms. south of Imbituvo. These beds 
were encountered on going below a depth of 120 meters: they were 45 meters thick 
and in them we found a small Lingula, scales of fishes, and remains of undetermined 
brachiopods and lamellibranchs. Below 160 meters in depth the boring traversed 
down to 395 meters exclusively shaly beds, without stratification, with pebbles and 
some boulders of granite. In 1908, in your company, I discovered the fossiliferous 
bed on the Rio Negro. It is a black, combustible shale, with Lingula, Discina, fishes 
and remains of sponges. In October of this year I found the equivalent of the beds 
of the boring at Passinho. They appear in the ravine east of T. Soares, 45 meters 
below the yellow sandstones, with pebbles, that here contain a thin bed of fossil 
plants. The section is as follows: — 
Sandstone, yellow, with thin layer of coal, 50.meters 
Shale, black, with abundant remains of insects. 0.60 
Shale, ashy, with rich flora of Glossopteris. 5.00 
do do somewhat burnable, containing Lingula, Discina, scales of fishes, 
wings of insects, Chonetes in abundance, and other brachiopods. 40.00 
Argillaceous bed with pebbles and boulders down to the river das Almas 60.00 
..It appears to me not to be doubted that the conglomerate is Carboniferous 
intermediate to the Permian. The insects appear not only in the marine beds but in 
those which occur immediately below the coal. 
This view modified may figure in your report. 
Cordially yours, 
Euzebio Paulo de Oliveira. 
Dr. Derby, in 1888, in a letter to Waagen, which was published by 
that geologist (Derby, 1888) announced the occurrence in this series 
of erratics and likened the deposits to those of the glacial beds of the 
