lxviii 



HA RD WICKE'S S CIENCE- G O SSI P. 



3s 



•2 S3 



<•> bu; o o 



. a, »- , & ^ « 5 « 



sits 



j £ 5 ° 



3 Ifl^J- »s "^og 



If •lillllsla ills'. 



Ph- 



o ™ 



aim > Ph w 



Church of 



England 



1840 



Write for Explanatory Pamphlet 



OF 



"Perfected" Pensions. 



FIRE 



ssurance 



Institution* 



LIFE 



y3 iV(?w System of Assurance 

 Without Medical E xam inatio n. 



THE BEST PROVISION FOR OLD AGE. 



Seven Special Advantages. 

 Apply for NEW Prospectus to the VePy Mod erate Rates. 



Head Office: 9 and 10, KING STREET, CHEAPSIDE, LONDON, E.C . 

 THE DARWINIAN THEORY OF THE ORIGIN OF SPECIES. 



By FRANCIS P. PASCOE, F.L.S., Ex-President of the Entomological Society. 

 (GURNEY AND JACKSON.) Price 6s. 



" Mr Pascoe is one of the best literary naturalists of the day, and anything he has to say on subjects like those discussed in this 

 little book, is bound to be listened to." — Science Gossip. 



" This book may be profitably studied by those who wish to know something of the many wonderful adaptations of structure, habits, 

 and metamorphoses of the animal kingdom." — Entomologist' s Monthly Magazine. 



" Many details are brought forward which he considers inexplicable on the theory of natural selection, and in some cases, especially 

 those of insects, it must be allowed, are often both real and pertinent." — Westminster Review. 



"The author has a distinct claim to make himself heard."— Nature. 



NEW ZOOLOGICAL MICRO-SLIDES. 



The Little Squid [Sepiola). Entire long Horizontal Section . 1 9 

 ,, ,, Entire long Vertical Section .19 



,, ,, ,, Trans. Section of Head ... 1 6 



„ » ,. ,. Mid Body . 1 6 



These Four Slides, showing all details of structure, including 

 Histology of the Eye; all double stained first-class 

 mounts • GO 



Anemone (Cerianthus). Long and Trans. Sections on one 



slide, showing full details of structure. Double stained . 1 9 



Trans. Section of Branchio-Genital region of, the large 



Balanoglossus "....16 



Typical Polychete Annelid, " Polynoe propinqua," mounted 



entire. One of the most beautiful of Paraboloid Slides . 2 

 Typical tubiculous Annelid, *' Spiroruis," removed from its 



tube and well displayed 1 



Rare parasitic Crustacean, " C/ialimus," tissues differentiated 



by osmic acid only l 



Typical Ascidian, " Perophora." Three on slide showing all 



details • ..1 



" Bugula Jlabellata" (polypidom), showing "Bird's Head 



Processes," etc., a very beautiful slide .1 



NEW SLIDES IN EVERY BRANCH OF MARINE ZOOLOGY. 



'PARCELS SENT TO SELECT FROM FREE OF CHARGES, AND A T SENDER'S ENTIRE RISK. LISTS FREE. 



.J. 



Specimens for dissection, and MUSEUM SPECIMENS, in every branch of Zoology. 



The latter carefully displayed on Glass Plates in hermetically closed museum jars of the best quality in clear spirit. 

 LISTS OF THESE ARE IN PREPARATION, BUT WRITTEN PARTICULARS WILL BE SENT ON APPLICATION. 



SITVEL, CLEVELAND ROAP, JERSEY. 



CADBURY'S COCOA 



ABSOLUTELY PURE, therefore BEST. 



PRECAUTION. — Be careful to avoid highly-coloured Foreign preparations, sold as pure, which are 

 adulterated with alkali. This may be detected by the dark colour, and the scent when a tin is first opened. 



