21 
Museum Exhibits 
The preparation of the horned dinosaur skeleton, from the Edmonton 
formation, has been nearly finished; the missing skull will be modelled from 
another specimen. Hind feet of two new carnivorous dinosaurs have been 
prepared and two dinosaur skulls have been partly prepared. A fine skull 
and jaws and part of the skeleton of a three-toed horse ( Mesohippus ) have 
been received as an exchange. 
Collections acquired by purchase for exhibit include a series of fossil 
insects preserved in amber and an ammonite nearly 2 feet in diameter. 
A fine series of specimens showing the work of boring molluscs in rock 
construction has been added to the collections to be placed on exhibit when 
more space becomes available. 
Educational Collections 
About 75 school collections of fossils have been assembled during the 
year for the use of teachers and students in the secondary schools. A few 
fossil collections of more elaborate character than the school collections 
have also been distributed, and include one to the Museum of the city of 
St. John, N.B. 
Type Material 
The types resulting from the description of new species of fossils 
belonging to the Museum which have been added to the Museum collec- 
tions during the year may be summarized as follows: 
Vertebrates: published in 
Contributions to Canadian Palaeontology, Bulletin 49 1 species 
Proceedings, Royal Society of Canada for 1928 1 
Canadian Field Naturalist, 1928 1 “ 
Invertebrates: published in 
Contributions to Canadian Palaeontology, Bulletin 49 8 “ 
Proceedings, Royal Society of Canada for 1928 (old species illustrated for 
the first time) 17 “ 
Plants: published in 
Contributions to Canadian Palaeontology 4 
Donations 
A general collection of natural history material presented to the 
Museum by Dr. Bell Dawson included some good specimens of trilobites 
from Ottawa district. Dr. Dannenberg of Aachen, Germany, presented 
a good collection of Middle Devonian fossils from Germany. Professor 
Smith of Bristol, England, presented six specimens representing geno- 
types of corals from England and Scotland. The Princeton University 
Museum presented a cast of the large Cambrian trilobite Mesonacus 
gilberti. 
