oesophagus.--The apparatus and its application.--2
illustrations. 10274

XI. PHOTOGRAPHY.--How to Make Photo-Printing Plates.--The
process of making relief plates for printers. 10271

XII. TECHNOLOGY.--Improved Current Meter.--A simple apparatus
for measuring air and water currents without indexes or other
complications.--1 illustration. 10270

The Flower Industry of Grasse.--Methods of manufacturing
perfumes in France.--The industry as practiced in the town
of Grasse. 10270

Volute Double Distilling Condenser.--A distiller and condenser
for producing fresh water from sea water.--3 illustrations. 10269

The Argand Burner.--The origin of the invention of the Argand
burner. 10275

* * * * *

[Illustration: THE CROWN PRINCE OF GERMANY--PRINCE WILLIAM AND SON
[From a Photograph]]

THE CROWN PRINCE OF GERMANY--PRINCE WILLIAM AND HIS SON.

At a moment when the entire world has its eyes fixed upon the invalid
of the Villa Zurio, it appears to us to be of interest to publish the
portrait of his son, Prince William. The military spirit of the
Hohenzollerns is found in him in all its force and exclusiveness. It
was hoped that the accession of the crown prince to the throne of
Germany would temper the harshness of it and modernize its aspect, but
the painful disease from which he is suffering warns us that the
moment may soon come in which the son will be called to succeed the
Emperor William, his grandfather, of whom he is morally the perfect
portrait. Like him, he loves the army, and makes it the object of his
entire attention. No colonel more scrupulously performs his duty than
he, when he enters the quarters of the regiment of red hussars whose
chief he is.

His solicitude for the army manifests itself openly. It is not without
pride that he regards his eldest son, who will soon be six years old,
and who is already clad in the uniform of a fusilier of the Guard.
Prince William is a soldier in spirit, just as harsh toward himself as
severe toward others. So he is the friend and emulator of Prince Von
Bismarck, who sees in him the depositary of the military traditions of
the house of Prussia, and who is preparing him by