1884.] Educational Purposes • -^49 
young {Mammalia). The enormous series of boneless ani- 
mals might form two groups, animals with jointed limbs 
C Arthropoda ) being set apart from the rest. Metals and 
metallic ores might be divided from other minerals. A sup- 
plementary series might be added for advanced classes, 
consisting of such groups as anthropology, with its divisions 
ethnology and archaeology. The teacher might be left to 
exercise his own discretion in giving a lesson from two or 
even more objects at a time, — points of difference or resem- 
blance constituting almost the entire sum of our knowledge, 
but the apt teacher will be careful to preserve as long as 
possible some unseen treat in store. 
. Where the teaching on the groups has been efficient, the 
sight of larger collections will be found indispensable. The 
Liverpool Museum is free to all during four days in the 
week ; but to ensure the largest amount of advantage to 
classes from schools the visiting party, under the supervision 
of the teacher, should not consist of more than twenty 
scholars. The visit should be made, if possible, at a stated 
hour known to the Curator, but by no means on a closed 
day — Tuesday or Friday. The visit should be made not for 
the purpose of passing rapidly through the rooms, but to a 
particular part, — to some special table case, or, at the ut- 
most, to two contiguous table cases ; to the wall cases in 
some room, or half a room ; or to some 20 or 25 feet of the 
cases in the gallery, the teacher and his class to remain in 
the selected department during the whole of their visit. If 
the visit be made under such conditions the officials of the 
Museum will be instructed to put up barricades to prevent 
the interruption of the teacher and his class by ordinary 
visitors. The teacher and his pupils will, in faCt, have the 
selected department to themselves for any time not exceeding 
one hour. I may be permitted to urge that such visits, to* 
gether with the necessary times for going and returning, 
should in every respeCt reckon as attendance in school. 
The specimens recommended for objedt lessons are not 
costly rarities, but each should be good and perfedt of its 
kind ; 6 or 8 inches in length, where such a size is ordinary ; 
not exceedingly fragile, yet all the better if requiring respedlt 
and care in being handled by the children. Such objects as 
the Arthropoda, bees, locusts, king-crabs, a stuffed bird, or 
the skeleton of a small vertebrate animal, &c., might be 
given for examination to the class, each enclosed in a glass- 
capped box. Teachers and children should be encouraged 
to bring to the objeCt lesson specimens of their own *for 
comparison with the type specimens, care being taken 
