Two Lenape Rock Shelters near Philadelphia

1947 ◽  
Vol 12 (4) ◽  
pp. 246-255 ◽  
Author(s):  
Mary Butler

In 1941–42 J. Frank Sterling, Paul Delgrego, and W. W. Yenney, amateurs who had become interested in collecting local Indian artifacts, excavated a rock .shelter on a stream flowing into Langford Run, near the town of Broomall in Delaware County, Pennsylvania. Langford Run is a tributary of Darby Creek, which in turn flows into the Delaware River from the west at Eddystone, about ten miles southwest of Philadelphia. Further excavation, in a second shelter about 100 yards away from the first, on Langford Run proper, soon uncovered a burial, and contact was established with the University Museum in the fall of 1943 through the good offices of Dr. and Mrs. H. O. Albrecht, members of the Society for American Archaeology.

Author(s):  
Catherine Casson ◽  
Mark Casson ◽  
John S. Lee ◽  
Katie Phillips

Chapter 7 connects the book to work on the subsequent history of Cambridge, including that on the development of the University. It considers the extent to which trends identified in the Hundred Rolls continued into the fourteenth century. Cambridge adjusted to the decline in its agricultural trade after the Black Death by developing its service sector, linked to university education. The role of family dynasties remained significant, but the period was characterised by the growth of three key institutions – the borough corporation, the guilds, and the colleges. College property holdings increased, driven by increasing student numbers, and the colleges gradually obtained rights to the meadows adjoining the river to the west of the town. The foundation of King’s College transformed the street plan in the west of Cambridge, obliterating many ancient streets and buildings, but providing new economic opportunities to supply the academic community.


1888 ◽  
Vol 5 (11) ◽  
pp. 500-501 ◽  
Author(s):  
A. Smith Woodward

During a recent visit to the University Museum at Oxford, I observed in the Grindrod Collection an interesting small fossil apparently adding to the known fauna of the Ledbury Passage Beds a remarkable type of fish, hitherto only met with in the Middle and Upper Devonian of the United States. Through the kindness of Professor Green, I have since had the opportunity of studying this specimen in London; and it is shown, of twice the natural size, in the accompanying Woodcut. It may be regarded as an imperfect example of the so-called “intermandibular arch” of the extinct ganoid, Onychodus, described by Prof. Newberry from the Corniferous Limestone of Ohio, and the Chemung Group of Delaware County, New York.


2010 ◽  
Vol 133-134 ◽  
pp. 531-536
Author(s):  
M. Pizzolato ◽  
M. Monti ◽  
P. Pigozzi ◽  
A. Tralli

The “3 Ponti of Comacchio” represents one of the most important architectural monuments in the Province of Ferrara and surely the most significant historical bridge in Emilia Romagna region. The masonry bridge was built in 1632 by the architect Luca Danese and the customer was the Cardinal Pallotta at that time governor of the town of Comacchio, therefore sometimes is denoted as Pallotta bridge. The shape of the bridge is very particular because it was built at the intersection of 5 canals and presents an internal vault composed by 5 groins of rampant barrel vaults. In 1690 two towers have been added and the bridge assumed the present form. Nowadays it is used as a pedestrian bridge. The interest for the structural behaviour of the masonry bridge is due to the rising up, in the last 2 years, of evident cracks interesting as well the internal vault as the staircases in the west side. The masonry structure was analyzed either by Diana program, using an elastic-plastic damaging model for the masonry, as well as by limit analysis algorithms recently developed by the University of Ferrara. One possible reason of the rising up of the cracks is the settlement of the 3 piers on the west side due to the lowering of the water level in the canals for hydraulic arrangement works. Furthermore, in this study, sinking of pillars foundation will be also taken into account.


2010 ◽  
Vol 124 (3) ◽  
pp. 219
Author(s):  
C. Stuart Houston ◽  
Frank Scott ◽  
Rob B. Tether

Between 1975 and 2002, diminished breeding success of Ospreys was associated with drought and falling lake levels in the western half of our study area near the town of Loon Lake, west-central Saskatchewan. Only 46% of nest attempts were successful in the west compared to 72% in the east, producing 0.88 young per accessible nest in the west and 1.42 in the east. Breeding success was greater in the eastern half, where water levels were stable, in spite of increased human use of the resort lakes there. Our unique long-term Canadian data base results support Ogden's 1977 prediction that Osprey productivity may decrease when water levels drop and fish populations are reduced.


1892 ◽  
Vol 36 (3) ◽  
pp. 641-729 ◽  
Author(s):  
Hugh Robert Mill

The fjord-like inlets or sea-lochs which form so conspicuous a feature in the scenery of the west of Scotland stand in marked contrast to the shallow, low-shored firths of the east coast. When Dr John Murray decided to extend the physical and biological work of the Scottish Marine Station to the west coast he foresaw that many interesting conclusions were likely to be derived from the study of these isolated sea-basins. Various papers, published by him and other workers, contain preliminary discussions of many of the phenomena observed, fully justifying the anticipations which had been formed.For one year my work, as described in this paper, was carried out under the provisions of an Elective Fellowship in Experimental Physics of the University of Edinburgh, to which I had been elected in 1886; and subsequently by a personal grant from the Government Grant Committee for Scientific Research. The Committee also devoted several sums of money in payment of expenses in compiling this discussion. The Scottish Marine Station throughout gave the use of the steam-yacht “Medusa,” and the necessary apparatus.


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