



34 THE NORTHERN MICROSCOPIST. 

The sozrée was formally opened at half-past six o’clock, in the Small Concert 
Room, by the Mayor of Liverpool. His Worship, who was warmly received 
by the assembled company, said there could be no doubt that it was by the aid 
of the learned societies of the city that a love of art and literature had increased 
amongst the inhabitants of the city. His predecessor in the high office which 
he had the honour of filling, congratulated his audience at the last soz7ée upon 
the completion of the endowment fund of University College ; and he now had 
the pleasure of congratulating them upon the completion of the College scheme 
and the first public appearance of the three of the first professors of the College 
Principal Rendall, Professor Lodge, and Professor Herdman. (Applause.) 
It was just seventy years since the first of these societies—the Literary and 
Philosophical—was founded, and the remaining eighteen other societies were 
nearly all offshoots from it, This fact indicated a large amount of activity in 
the various branches of science amongst the commercial classes of Liverpool. 
Amongst the lectures—in the Crown Court at 9 p.m., a Lecture, on “ Inte- 
resting Characteristics in the Life-History of some Common Shell Fish,” was 
delivered by Dr. Hicks, illustrated by the author’s original drawings, shown 
by the Oxy-Hydrogen Light ; and in the Civil Court, at the same hour, a lec- 
ture on “‘ Life at Great Depths in the Ocean,”’ by Professor Herdman, D.Sc., 
F.L.S., which was rendered additionally interesting from the fact of his having 
been the secretary to the Challenger expedition committee. 
The microscopical display was arranged in the following groups, which we 
give as being useful to other societies :— 

AN McA ly SKE NG DOuis 
SuB-KINGDOM. CLASS. 
I.—PROTOZOA. The simplest of all animals, having ( Rhizopoda 
neither body-cavity nor nervous system ............... Infusoria 
II.—POLYSTOMATA, (Sponges only) have an internal 
cavity, one outlet, and usually many inlets............ 
III.--CCELENTERATA, (Jelly Fishes, Sea-anemones, | 
and Hydra) have a stomach-cavity, and a radiate ; Hydrozoa 
S)VALD RCSLT Blog oat odin acct ee Bnei oa a eee J 
IV.—ECHINODERMATA. (Star-fishes and Sea Urchins) ) 
have a body-cavity, stomach, nervous and water- ; Ophiurida ... 
RAS CUAL ASV SUCINS teint deci tae Aaah scseuicsain sss wlrne es i! 
V.—VERMES. (Leeches, Worms, Rotifers, &c.) have 
a body-cavity, alimentary canal, nervous and vas- } Rotifera 
CWA SV SUCUNS.4 kt clasts tdsuas shicoeene Lona Tat eta toe cae eNels 
heart and blood vascular system, alimentary canal, Mollusca 
nervous system, and advanced respiratory organs... Gasteropoda. 
VI.—MOLLUSCA. (Oysters, Snails, &c.) have a rl { Matic 
Arachnida ... 
VII.—ARTHROPODA. (Crabs, Spiders, Insects, &c.) 
have jointed bodies and limbs, and an external { Insecta 
skeletonan-addition tothe above sn civ. cass. .r vere. ds vee 

