Part 19 (1/2)

This is a text-book for amateurs, students, and others ant to take up a systematic course of electrical experiments at home or in school

It will give a practical and experihly prepare students for advanced work Full directions are given for

TWO HUNDRED EXPERIMENTS

The experiments and discussions are so planned that the student is always prepared for what follows Although the experiments may be performed with the apparatus that is usually found in school laboratories, the author has designed a complete set of apparatus for those ant to have their own outfit

_If you want to take up a systematic course of experi foundation for your electrical knowledge--this book will serve as a valuable guide_

Jan 1, 1918 STUDENT'S DISCOUNT DISCONTINUED

PRICE TO ALL, 625

Owing to greatly increased costs of labor and materials the discount of 65c formerly allowed on this set has been discontinued Coht on improved sets 10 lbs securely packed in wooden box Sent by parcel post if proper postage is included in your rees collect

Fun With Magnetis men upon electrical careers than any other scientific outfits ever placed before the public The thousands upon thousands that have been sold in all parts of the world have furnished fun and science for people of all ages, and the mere fact that they are listed by the New York Board of Education, and recommend to the pupils and teachers of the New York public and private schools is a guarantee of their value Were it not for the fact that these are ents and her

Don't fail to get these They have a national reputation

FUN WITH MAGNETISM

This outfit contains a 32-page book of instructions, with 45 illustrations, together with a co experinetisht place in your study of electricity

Think what that ht!

The book contains experinets, with floating e of the subject; and it is all done in such an interesting way that one can't help re it Every experiment clinches some fact and every fact is important

A for Nervous People to Try--The Jersey Mosquito--The Sta--The Naval Battle--A String of Fish--A Magnetic Gun--A Top Upside down--A Magnetic Windnetic Acrobat--The Busy Ant-hill--The Magnetic Bridge--The Merry-go-Round--The Tight-rope Walker--A Magnetic Motor Using Attractions and Repulsions--And 43 Others

No R1--”Fun with Magnetism,” Complete Outfit, postpaid 035

[Illustration]

FUN WITH ELECTRICITY

The author of this Fun with Science series has spent a great deal of ti to devise apparatus that will do the proper work and be, at the same time, simple and cheap, and in no outfit has he succeeded better than in Fun with Electricity When you think of an outfit retailing for 50c and covering the whole subject of ”Static Electricity,” giving 60 scientific experiments upon its production, conduction and induction, with a 55-page book of instructions with 38 drawings, and a co these 60 experiments, you will understand why the sales of this outfit have been enor way--and not as mere dry science--every one likes to do the experiments

No wonder these sets are highly praised by parents and educators in every part of the country!

There is Fun in these Experi--The Baby Thunderstor Pond--An Electric Ding-Dong--The Magic Finger--Daddy Long-Legs--Juhtning--An Electric Fly-Trap--The Merry Pendulum--An Electric Ferry-Boat--A Funny Piece of Paper--A Joke on the Fa Goes Over a Bridge--Electricity Carries a Lantern--And 40 Others

There isn't an outfit anywhere at any price that gives better value for the money An ideal present for a boy

No R2--”Fun with Electricity,” Complete Outfit, postpaid 065

FUN WITH PUZZLES